155811104 has 12 divisors (see below), whose sum is σ = 306753174. Its totient is φ = 77905536.

The previous prime is 155811091. The next prime is 155811119. The reversal of 155811104 is 401118551.

It can be written as a sum of positive squares in only one way, i.e., 155251600 + 559504 = 12460^2 + 748^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2434517 + ... + 2434580.

Almost surely, 2^155811104 is an apocalyptic number.

It is an amenable number.

155811104 is a deficient number, since it is larger than the sum of its proper divisors (150942070).

155811104 is an equidigital number, since it uses as much as digits as its factorization.

155811104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4869107 (or 4869099 counting only the distinct ones).

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

The square root of 155811104 is about 12482.4318143541. The cubic root of 155811104 is about 538.1038941066.

Adding to 155811104 its reverse (401118551), we get a palindrome (556929655).

The spelling of 155811104 in words is "one hundred fifty-five million, eight hundred eleven thousand, one hundred four".