155892242 has 16 divisors (see below), whose sum is σ = 263326464. Its totient is φ = 68574000.

The previous prime is 155892199. The next prime is 155892263. The reversal of 155892242 is 242298551.

155892242 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 2×155892242² = 48604782231573128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155892196 and 155892205.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113609 + ... + 114972.

It is an arithmetic number, because the mean of its divisors is an integer number (16457904).

Almost surely, 2^155892242 is an apocalyptic number.

155892242 is a deficient number, since it is larger than the sum of its proper divisors (107434222).

155892242 is a wasteful number, since it uses less digits than its factorization.

155892242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228625.

The product of its digits is 57600, while the sum is 38.

The square root of 155892242 is about 12485.6814791985. The cubic root of 155892242 is about 538.1972830375.

The spelling of 155892242 in words is "one hundred fifty-five million, eight hundred ninety-two thousand, two hundred forty-two".