245452155 has 32 divisors (see below), whose sum is σ = 429268224. Its totient is φ = 119028096.

The previous prime is 245452153. The next prime is 245452157. The reversal of 245452155 is 551254542.

It is an interprime number because it is at equal distance from previous prime (245452153) and next prime (245452157).

It is not a de Polignac number, because 245452155 - 2¹ = 245452153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245452153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3672 + ... + 22458.

It is an arithmetic number, because the mean of its divisors is an integer number (13414632).

Almost surely, 2^245452155 is an apocalyptic number.

245452155 is a deficient number, since it is larger than the sum of its proper divisors (183816069).

245452155 is a wasteful number, since it uses less digits than its factorization.

245452155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18875.

The product of its digits is 40000, while the sum is 33.

The square root of 245452155 is about 15666.9127462943. The cubic root of 245452155 is about 626.1171741519.

The spelling of 245452155 in words is "two hundred forty-five million, four hundred fifty-two thousand, one hundred fifty-five".