996521045 has 32 divisors (see below), whose sum is σ = 1377220320. Its totient is φ = 685670400.

The previous prime is 996521041. The next prime is 996521093. The reversal of 996521045 is 540125699.

It can be written as a sum of positive squares in 16 ways, for example, as 240436036 + 756085009 = 15506^2 + 27497^2 .

It is not a de Polignac number, because 996521045 - 2² = 996521041 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 996520993 and 996521011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996521041) 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 31 ways as a sum of consecutive naturals, for example, 107141 + ... + 116069.

It is an arithmetic number, because the mean of its divisors is an integer number (43038135).

Almost surely, 2^996521045 is an apocalyptic number.

It is an amenable number.

996521045 is a deficient number, since it is larger than the sum of its proper divisors (380699275).

996521045 is a wasteful number, since it uses less digits than its factorization.

996521045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9065.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 996521045 is about 31567.7215680828. The cubic root of 996521045 is about 998.8390009362.

The spelling of 996521045 in words is "nine hundred ninety-six million, five hundred twenty-one thousand, forty-five".