45712530 has 24 divisors (see below), whose sum is σ = 118852812. Its totient is φ = 12189984.

The previous prime is 45712493. The next prime is 45712543. The reversal of 45712530 is 3521754.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 45118089 + 594441 = 6717^2 + 771^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45712494 and 45712503.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 253869 + ... + 254048.

Almost surely, 2^45712530 is an apocalyptic number.

45712530 is an abundant number, since it is smaller than the sum of its proper divisors (73140282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45712530 is a wasteful number, since it uses less digits than its factorization.

45712530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507930 (or 507927 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 45712530 is about 6761.1041997591. The cubic root of 45712530 is about 357.5568364490.

The spelling of 45712530 in words is "forty-five million, seven hundred twelve thousand, five hundred thirty".