15128023 has 8 divisors (see below), whose sum is σ = 15367968. Its totient is φ = 14889984.

The previous prime is 15128017. The next prime is 15128027. The reversal of 15128023 is 32082151.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15128023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15127985 and 15128003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15128027) 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, 25215 + ... + 25807.

It is an arithmetic number, because the mean of its divisors is an integer number (1920996).

Almost surely, 2^15128023 is an apocalyptic number.

15128023 is a deficient number, since it is larger than the sum of its proper divisors (239945).

15128023 is an equidigital number, since it uses as much as digits as its factorization.

15128023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 15128023 is about 3889.4759287081. The cubic root of 15128023 is about 247.3208471226.

The spelling of 15128023 in words is "fifteen million, one hundred twenty-eight thousand, twenty-three".