909145955 has 16 divisors (see below), whose sum is σ = 1139344704. Its totient is φ = 695122560.

The previous prime is 909145949. The next prime is 909145961. The reversal of 909145955 is 559541909.

It is an interprime number because it is at equal distance from previous prime (909145949) and next prime (909145961).

It is not a de Polignac number, because 909145955 - 2¹⁰ = 909144931 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183977 + ... + 188853.

It is an arithmetic number, because the mean of its divisors is an integer number (71209044).

Almost surely, 2^909145955 is an apocalyptic number.

909145955 is a deficient number, since it is larger than the sum of its proper divisors (230198749).

909145955 is a wasteful number, since it uses less digits than its factorization.

909145955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6526.

The product of its (nonzero) digits is 364500, while the sum is 47.

The square root of 909145955 is about 30152.0472770921. The cubic root of 909145955 is about 968.7488581048.

It can be divided in two parts, 90914 and 5955, that added together give a palindrome (96869).

The spelling of 909145955 in words is "nine hundred nine million, one hundred forty-five thousand, nine hundred fifty-five".