13123930 has 8 divisors (see below), whose sum is σ = 23623092. Its totient is φ = 5249568.

The previous prime is 13123919. The next prime is 13123931. The reversal of 13123930 is 3932131.

It can be written as a sum of positive squares in 2 ways, for example, as 12595401 + 528529 = 3549^2 + 727^2 .

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 (13123931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656187 + ... + 656206.

Almost surely, 2^13123930 is an apocalyptic number.

13123930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13123930 is a deficient number, since it is larger than the sum of its proper divisors (10499162).

13123930 is a wasteful number, since it uses less digits than its factorization.

13123930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312400.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 13123930 is about 3622.6965095078. The cubic root of 13123930 is about 235.8782887685.

The spelling of 13123930 in words is "thirteen million, one hundred twenty-three thousand, nine hundred thirty".