1043613025 has 81 divisors (see below), whose sum is σ = 1653344793. Its totient is φ = 651268800.

The previous prime is 1043613023. The next prime is 1043613029. The reversal of 1043613025 is 5203163401.

The square root of 1043613025 is 32305.

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

It can be written as a sum of positive squares in 4 ways, for example, as 268992801 + 774620224 = 16401^2 + 27832^2 .

It is not a de Polignac number, because 1043613025 - 2¹ = 1043613023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1043613023) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 14698740 + ... + 14698810.

Almost surely, 2^1043613025 is an apocalyptic number.

1043613025 is the 32305-th square number.

1043613025 is the 16153-rd centered octagonal number.

It is an amenable number.

1043613025 is a deficient number, since it is larger than the sum of its proper divisors (609731768).

1043613025 is an equidigital number, since it uses as much as digits as its factorization.

1043613025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The cubic root of 1043613025 is about 1014.3313074743.

Multiplying 1043613025 by its sum of digits (25), we get a square (26090325625 = 161525²).

1043613025 divided by its sum of digits (25) gives a square (41744521 = 6461²).

Adding to 1043613025 its reverse (5203163401), we get a palindrome (6246776426).

The spelling of 1043613025 in words is "one billion, forty-three million, six hundred thirteen thousand, twenty-five".