123239051 has 8 divisors (see below), whose sum is σ = 133074480. Its totient is φ = 113454432.

The previous prime is 123239041. The next prime is 123239057. The reversal of 123239051 is 150932321.

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

It is not a de Polignac number, because 123239051 - 2⁶ = 123238987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123239051.

It is not an unprimeable number, because it can be changed into a prime (123239057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7580 + ... + 17433.

It is an arithmetic number, because the mean of its divisors is an integer number (16634310).

Almost surely, 2^123239051 is an apocalyptic number.

123239051 is a deficient number, since it is larger than the sum of its proper divisors (9835429).

123239051 is a wasteful number, since it uses less digits than its factorization.

123239051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25405.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 123239051 is about 11101.3085264756. The cubic root of 123239051 is about 497.6409553208.

The spelling of 123239051 in words is "one hundred twenty-three million, two hundred thirty-nine thousand, fifty-one".