1052157 has 4 divisors (see below), whose sum is σ = 1402880. Its totient is φ = 701436.

The previous prime is 1052141. The next prime is 1052179. The reversal of 1052157 is 7512501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7512501 = 3 ⋅2504167.

It is not a de Polignac number, because 1052157 - 2⁴ = 1052141 is a prime.

It is a super-2 number, since 2×1052157² = 2214068705298, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175357 + ... + 175362.

It is an arithmetic number, because the mean of its divisors is an integer number (350720).

2^1052157 is an apocalyptic number.

It is an amenable number.

1052157 is a deficient number, since it is larger than the sum of its proper divisors (350723).

1052157 is an equidigital number, since it uses as much as digits as its factorization.

1052157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350722.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 1052157 is about 1025.7470448410. The cubic root of 1052157 is about 101.7091870276.

Adding to 1052157 its reverse (7512501), we get a palindrome (8564658).

The spelling of 1052157 in words is "one million, fifty-two thousand, one hundred fifty-seven".