123939351 has 12 divisors (see below), whose sum is σ = 183390480. Its totient is φ = 80610720.

The previous prime is 123939349. The next prime is 123939371. The reversal of 123939351 is 153939321.

It is not a de Polignac number, because 123939351 - 2¹ = 123939349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123939331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167571 + ... + 168308.

It is an arithmetic number, because the mean of its divisors is an integer number (15282540).

Almost surely, 2^123939351 is an apocalyptic number.

123939351 is a deficient number, since it is larger than the sum of its proper divisors (59451129).

123939351 is a wasteful number, since it uses less digits than its factorization.

123939351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335926 (or 335923 counting only the distinct ones).

The product of its digits is 21870, while the sum is 36.

The square root of 123939351 is about 11132.8051721029. The cubic root of 123939351 is about 498.5817824547.

The spelling of 123939351 in words is "one hundred twenty-three million, nine hundred thirty-nine thousand, three hundred fifty-one".