123387530 has 32 divisors (see below), whose sum is σ = 268759296. Its totient is φ = 39815424.

The previous prime is 123387527. The next prime is 123387541. The reversal of 123387530 is 35783321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50654 + ... + 53033.

It is an arithmetic number, because the mean of its divisors is an integer number (8398728).

Almost surely, 2^123387530 is an apocalyptic number.

123387530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123387530 is an abundant number, since it is smaller than the sum of its proper divisors (145371766).

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

123387530 is a wasteful number, since it uses less digits than its factorization.

123387530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103718.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 123387530 is about 11107.9939683095. The cubic root of 123387530 is about 497.8407285167.

The spelling of 123387530 in words is "one hundred twenty-three million, three hundred eighty-seven thousand, five hundred thirty".