245165613 has 16 divisors (see below), whose sum is σ = 407548416. Its totient is φ = 127358640.

The previous prime is 245165597. The next prime is 245165617. The reversal of 245165613 is 316561542.

It is not a de Polignac number, because 245165613 - 2⁴ = 245165597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245165617) 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 15 ways as a sum of consecutive naturals, for example, 530431 + ... + 530892.

It is an arithmetic number, because the mean of its divisors is an integer number (25471776).

Almost surely, 2^245165613 is an apocalyptic number.

It is an amenable number.

245165613 is a deficient number, since it is larger than the sum of its proper divisors (162382803).

245165613 is a wasteful number, since it uses less digits than its factorization.

245165613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061344.

The product of its digits is 21600, while the sum is 33.

The square root of 245165613 is about 15657.7652620034. The cubic root of 245165613 is about 625.8734352355.

The spelling of 245165613 in words is "two hundred forty-five million, one hundred sixty-five thousand, six hundred thirteen".