245436157 has 4 divisors (see below), whose sum is σ = 259873596. Its totient is φ = 230998720.

The previous prime is 245436097. The next prime is 245436179. The reversal of 245436157 is 751634542.

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 154405476 + 91030681 = 12426^2 + 9541^2 .

It is not a de Polignac number, because 245436157 - 2¹¹ = 245434109 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 (245436857) 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, 7218694 + ... + 7218727.

It is an arithmetic number, because the mean of its divisors is an integer number (64968399).

Almost surely, 2^245436157 is an apocalyptic number.

It is an amenable number.

245436157 is a deficient number, since it is larger than the sum of its proper divisors (14437439).

245436157 is a wasteful number, since it uses less digits than its factorization.

245436157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14437438.

The product of its digits is 100800, while the sum is 37.

The square root of 245436157 is about 15666.4021715262. The cubic root of 245436157 is about 626.1035709031.

The spelling of 245436157 in words is "two hundred forty-five million, four hundred thirty-six thousand, one hundred fifty-seven".