123812955 has 120 divisors (see below), whose sum is σ = 274114368. Its totient is φ = 53125632.

The previous prime is 123812881. The next prime is 123812957. The reversal of 123812955 is 559218321.

It is not a de Polignac number, because 123812955 - 2⁸ = 123812699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123812957) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 337182 + ... + 337548.

Almost surely, 2^123812955 is an apocalyptic number.

123812955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123812955 is an abundant number, since it is smaller than the sum of its proper divisors (150301413).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123812955 is a wasteful number, since it uses less digits than its factorization.

123812955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 399 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 123812955 is about 11127.1269876820. The cubic root of 123812955 is about 498.4122366856.

The spelling of 123812955 in words is "one hundred twenty-three million, eight hundred twelve thousand, nine hundred fifty-five".