1040645525 has 6 divisors (see below), whose sum is σ = 1290400482. Its totient is φ = 832516400.

The previous prime is 1040645503. The next prime is 1040645533. The reversal of 1040645525 is 5255460401.

It can be written as a sum of positive squares in 3 ways, for example, as 12096484 + 1028549041 = 3478^2 + 32071^2 .

It is not a de Polignac number, because 1040645525 - 2⁸ = 1040645269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1040645491 and 1040645500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20812886 + ... + 20812935.

It is an arithmetic number, because the mean of its divisors is an integer number (215066747).

Almost surely, 2^1040645525 is an apocalyptic number.

It is an amenable number.

1040645525 is a deficient number, since it is larger than the sum of its proper divisors (249754957).

1040645525 is an equidigital number, since it uses as much as digits as its factorization.

1040645525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41625831 (or 41625826 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 1040645525 is about 32259.0378808792. The cubic root of 1040645525 is about 1013.3689821711.

The spelling of 1040645525 in words is "one billion, forty million, six hundred forty-five thousand, five hundred twenty-five".