245679513 has 16 divisors (see below), whose sum is σ = 334103616. Its totient is φ = 160539840.

The previous prime is 245679509. The next prime is 245679517. The reversal of 245679513 is 315976542.

245679513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (245679509) and next prime (245679517).

It is not a de Polignac number, because 245679513 - 2² = 245679509 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245679517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53995 + ... + 58367.

It is an arithmetic number, because the mean of its divisors is an integer number (20881476).

Almost surely, 2^245679513 is an apocalyptic number.

It is an amenable number.

245679513 is a deficient number, since it is larger than the sum of its proper divisors (88424103).

245679513 is a wasteful number, since it uses less digits than its factorization.

245679513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4744.

The product of its digits is 226800, while the sum is 42.

The square root of 245679513 is about 15674.1670592092. The cubic root of 245679513 is about 626.3104349229.

The spelling of 245679513 in words is "two hundred forty-five million, six hundred seventy-nine thousand, five hundred thirteen".