155775130 has 32 divisors (see below), whose sum is σ = 321096960. Its totient is φ = 53301120.

The previous prime is 155775119. The next prime is 155775149. The reversal of 155775130 is 31577551.

155775130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×155775130² = 48531782253033800, which contains 22 as substring.

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, 37875 + ... + 41785.

It is an arithmetic number, because the mean of its divisors is an integer number (10034280).

Almost surely, 2^155775130 is an apocalyptic number.

155775130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155775130 is an abundant number, since it is smaller than the sum of its proper divisors (165321830).

155775130 is a wasteful number, since it uses less digits than its factorization.

155775130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4494.

The product of its (nonzero) digits is 18375, while the sum is 34.

The square root of 155775130 is about 12480.9907459304. The cubic root of 155775130 is about 538.0624780608.

The spelling of 155775130 in words is "one hundred fifty-five million, seven hundred seventy-five thousand, one hundred thirty".