123290475 has 96 divisors (see below), whose sum is σ = 261459456. Its totient is φ = 49766400.

The previous prime is 123290437. The next prime is 123290483. The reversal of 123290475 is 574092321.

It is not a de Polignac number, because 123290475 - 2¹⁵ = 123257707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 213387 + ... + 213963.

It is an arithmetic number, because the mean of its divisors is an integer number (2723536).

Almost surely, 2^123290475 is an apocalyptic number.

123290475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123290475 is an abundant number, since it is smaller than the sum of its proper divisors (138168981).

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

123290475 is a wasteful number, since it uses less digits than its factorization.

123290475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 123290475 is about 11103.6244082732. The cubic root of 123290475 is about 497.7101626316.

The spelling of 123290475 in words is "one hundred twenty-three million, two hundred ninety thousand, four hundred seventy-five".