123942152 has 16 divisors (see below), whose sum is σ = 235334400. Its totient is φ = 61186320.

The previous prime is 123942131. The next prime is 123942163. The reversal of 123942152 is 251249321.

It is a super-2 number, since 2×123942152² = 30723314084782208, which contains 22 as substring.

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, 97424 + ... + 98687.

It is an arithmetic number, because the mean of its divisors is an integer number (14708400).

Almost surely, 2^123942152 is an apocalyptic number.

It is an amenable number.

123942152 is a deficient number, since it is larger than the sum of its proper divisors (111392248).

123942152 is a wasteful number, since it uses less digits than its factorization.

123942152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196196 (or 196192 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 123942152 is about 11132.9309707732. The cubic root of 123942152 is about 498.5855383698.

The spelling of 123942152 in words is "one hundred twenty-three million, nine hundred forty-two thousand, one hundred fifty-two".