409123155 has 32 divisors (see below), whose sum is σ = 773913600. Its totient is φ = 180577152.

The previous prime is 409123123. The next prime is 409123193. The reversal of 409123155 is 551321904.

It is not a de Polignac number, because 409123155 - 2⁵ = 409123123 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64135 + ... + 70224.

It is an arithmetic number, because the mean of its divisors is an integer number (24184800).

Almost surely, 2^409123155 is an apocalyptic number.

409123155 is a deficient number, since it is larger than the sum of its proper divisors (364790445).

409123155 is a wasteful number, since it uses less digits than its factorization.

409123155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134403.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 409123155 is about 20226.7929983970. The cubic root of 409123155 is about 742.3659089668.

The spelling of 409123155 in words is "four hundred nine million, one hundred twenty-three thousand, one hundred fifty-five".