245710227157 has 4 divisors (see below), whose sum is σ = 247884654060. Its totient is φ = 243535800256.

The previous prime is 245710227149. The next prime is 245710227163. The reversal of 245710227157 is 751722017542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9508395121 + 236201832036 = 97511^2 + 486006^2 .

It is a cyclic number.

It is not a de Polignac number, because 245710227157 - 2³ = 245710227149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245710224157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1087213282 + ... + 1087213507.

It is an arithmetic number, because the mean of its divisors is an integer number (61971163515).

Almost surely, 2^245710227157 is an apocalyptic number.

It is an amenable number.

245710227157 is a deficient number, since it is larger than the sum of its proper divisors (2174426903).

245710227157 is a wasteful number, since it uses less digits than its factorization.

245710227157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174426902.

The product of its (nonzero) digits is 274400, while the sum is 43.

The spelling of 245710227157 in words is "two hundred forty-five billion, seven hundred ten million, two hundred twenty-seven thousand, one hundred fifty-seven".