245357645 has 16 divisors (see below), whose sum is σ = 318753792. Its totient is φ = 180229440.

The previous prime is 245357641. The next prime is 245357669. The reversal of 245357645 is 546753542.

It is not a de Polignac number, because 245357645 - 2² = 245357641 is a prime.

It is a super-3 number, since 3×245357645³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245357641) 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, 2534 + ... + 22296.

It is an arithmetic number, because the mean of its divisors is an integer number (19922112).

Almost surely, 2^245357645 is an apocalyptic number.

It is an amenable number.

245357645 is a deficient number, since it is larger than the sum of its proper divisors (73396147).

245357645 is a wasteful number, since it uses less digits than its factorization.

245357645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19972.

The product of its digits is 504000, while the sum is 41.

The square root of 245357645 is about 15663.8962266736. The cubic root of 245357645 is about 626.0368028460.

The spelling of 245357645 in words is "two hundred forty-five million, three hundred fifty-seven thousand, six hundred forty-five".