123574990 has 96 divisors (see below), whose sum is σ = 288271872. Its totient is φ = 37051200.

The previous prime is 123574973. The next prime is 123574999. The reversal of 123574990 is 99475321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123574999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 739887 + ... + 740053.

It is an arithmetic number, because the mean of its divisors is an integer number (3002832).

Almost surely, 2^123574990 is an apocalyptic number.

123574990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123574990 is an abundant number, since it is smaller than the sum of its proper divisors (164696882).

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

123574990 is a wasteful number, since it uses less digits than its factorization.

123574990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 123574990 is about 11116.4288330381. The cubic root of 123574990 is about 498.0927204872.

The spelling of 123574990 in words is "one hundred twenty-three million, five hundred seventy-four thousand, nine hundred ninety".