1051640041 has 3 divisors (see below), whose sum is σ = 1051672471. Its totient is φ = 1051607612.

The previous prime is 1051640039. The next prime is 1051640047. The reversal of 1051640041 is 1400461501.

The square root of 1051640041 is 32429.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1400461501 = 28163 ⋅49727.

It can be written as a sum of positive squares in only one way, i.e., 752350041 + 299290000 = 27429^2 + 17300^2 .

It is not a de Polignac number, because 1051640041 - 2¹ = 1051640039 is a prime.

It is a super-2 number, since 2×1051640041² = 2211893551668963362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1051639994 and 1051640021.

It is not an unprimeable number, because it can be changed into a prime (1051640047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 16215 + ... + 48643.

Almost surely, 2^1051640041 is an apocalyptic number.

1051640041 is the 32429-th square number.

1051640041 is the 16215-th centered octagonal number.

It is an amenable number.

1051640041 is a deficient number, since it is larger than the sum of its proper divisors (32430).

1051640041 is an frugal number, since it uses more digits than its factorization.

1051640041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64858 (or 32429 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The cubic root of 1051640041 is about 1016.9252662006.

The spelling of 1051640041 in words is "one billion, fifty-one million, six hundred forty thousand, forty-one".