123987152 has 10 divisors (see below), whose sum is σ = 240225138. Its totient is φ = 61993568.

The previous prime is 123987131. The next prime is 123987161. The reversal of 123987152 is 251789321.

It can be written as a sum of positive squares in only one way, i.e., 122855056 + 1132096 = 11084^2 + 1064^2 .

It is a super-2 number, since 2×123987152² = 30745627722142208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3874583 + ... + 3874614.

Almost surely, 2^123987152 is an apocalyptic number.

It is an amenable number.

123987152 is a deficient number, since it is larger than the sum of its proper divisors (116237986).

123987152 is an equidigital number, since it uses as much as digits as its factorization.

123987152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7749205 (or 7749199 counting only the distinct ones).

The product of its digits is 30240, while the sum is 38.

The square root of 123987152 is about 11134.9518184858. The cubic root of 123987152 is about 498.6458719853.

The spelling of 123987152 in words is "one hundred twenty-three million, nine hundred eighty-seven thousand, one hundred fifty-two".