123512152 has 8 divisors (see below), whose sum is σ = 231585300. Its totient is φ = 61756072.

The previous prime is 123512143. The next prime is 123512161. The reversal of 123512152 is 251215321.

It is an interprime number because it is at equal distance from previous prime (123512143) and next prime (123512161).

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×123512152² = 30510503383342208, 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, 7719502 + ... + 7719517.

Almost surely, 2^123512152 is an apocalyptic number.

It is an amenable number.

123512152 is a deficient number, since it is larger than the sum of its proper divisors (108073148).

123512152 is a wasteful number, since it uses less digits than its factorization.

123512152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15439025 (or 15439021 counting only the distinct ones).

The product of its digits is 600, while the sum is 22.

The square root of 123512152 is about 11113.6021163257. The cubic root of 123512152 is about 498.0082792987.

Adding to 123512152 its reverse (251215321), we get a palindrome (374727473).

The spelling of 123512152 in words is "one hundred twenty-three million, five hundred twelve thousand, one hundred fifty-two".