15138703023 has 8 divisors (see below), whose sum is σ = 20654354688. Its totient is φ = 9857760024.

The previous prime is 15138703009. The next prime is 15138703051. The reversal of 15138703023 is 32030783151.

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

It is not a de Polignac number, because 15138703023 - 2⁴ = 15138703007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15138703003) 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, 58677015 + ... + 58677272.

It is an arithmetic number, because the mean of its divisors is an integer number (2581794336).

Almost surely, 2^15138703023 is an apocalyptic number.

15138703023 is a deficient number, since it is larger than the sum of its proper divisors (5515651665).

15138703023 is a wasteful number, since it uses less digits than its factorization.

15138703023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117354333.

The product of its (nonzero) digits is 15120, while the sum is 33.

The spelling of 15138703023 in words is "fifteen billion, one hundred thirty-eight million, seven hundred three thousand, twenty-three".