123939370 has 8 divisors (see below), whose sum is σ = 223090884. Its totient is φ = 49575744.

The previous prime is 123939349. The next prime is 123939371. The reversal of 123939370 is 73939321.

It can be written as a sum of positive squares in 2 ways, for example, as 102880449 + 21058921 = 10143^2 + 4589^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (123939371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6196959 + ... + 6196978.

Almost surely, 2^123939370 is an apocalyptic number.

123939370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123939370 is a deficient number, since it is larger than the sum of its proper divisors (99151514).

123939370 is a wasteful number, since it uses less digits than its factorization.

123939370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12393944.

The product of its (nonzero) digits is 30618, while the sum is 37.

The square root of 123939370 is about 11132.8060254367. The cubic root of 123939370 is about 498.5818079323.

The spelling of 123939370 in words is "one hundred twenty-three million, nine hundred thirty-nine thousand, three hundred seventy".