245531512 has 16 divisors (see below), whose sum is σ = 462759840. Its totient is φ = 122128896.

The previous prime is 245531443. The next prime is 245531521. The reversal of 245531512 is 215135542.

It is a super-2 number, since 2×245531512² = 120571446770012288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77968 + ... + 81055.

It is an arithmetic number, because the mean of its divisors is an integer number (28922490).

Almost surely, 2^245531512 is an apocalyptic number.

It is an amenable number.

245531512 is a deficient number, since it is larger than the sum of its proper divisors (217228328).

245531512 is a wasteful number, since it uses less digits than its factorization.

245531512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159222 (or 159218 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 245531512 is about 15669.4451720538. The cubic root of 245531512 is about 626.1846434133.

The spelling of 245531512 in words is "two hundred forty-five million, five hundred thirty-one thousand, five hundred twelve".