155054212 has 24 divisors (see below), whose sum is σ = 302430240. Its totient is φ = 69125760.

The previous prime is 155054189. The next prime is 155054227. The reversal of 155054212 is 212450551.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58714 + ... + 61297.

It is an arithmetic number, because the mean of its divisors is an integer number (12601260).

Almost surely, 2^155054212 is an apocalyptic number.

It is an amenable number.

155054212 is a deficient number, since it is larger than the sum of its proper divisors (147376028).

155054212 is a wasteful number, since it uses less digits than its factorization.

155054212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120051 (or 120049 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 155054212 is about 12452.0766139628. The cubic root of 155054212 is about 537.2311539595.

The spelling of 155054212 in words is "one hundred fifty-five million, fifty-four thousand, two hundred twelve".