408111155 has 4 divisors (see below), whose sum is σ = 489733392. Its totient is φ = 326488920.

The previous prime is 408111133. The next prime is 408111169. The reversal of 408111155 is 551111804.

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

It is not a de Polignac number, because 408111155 - 2²⁸ = 139675699 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40811111 + ... + 40811120.

It is an arithmetic number, because the mean of its divisors is an integer number (122433348).

Almost surely, 2^408111155 is an apocalyptic number.

408111155 is a deficient number, since it is larger than the sum of its proper divisors (81622237).

408111155 is an equidigital number, since it uses as much as digits as its factorization.

408111155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81622236.

The product of its (nonzero) digits is 800, while the sum is 26.

The square root of 408111155 is about 20201.7611855996. The cubic root of 408111155 is about 741.7533023962.

Adding to 408111155 its reverse (551111804), we get a palindrome (959222959).

The spelling of 408111155 in words is "four hundred eight million, one hundred eleven thousand, one hundred fifty-five".