15147023 has 4 divisors (see below), whose sum is σ = 15556440. Its totient is φ = 14737608.

The previous prime is 15147007. The next prime is 15147031. The reversal of 15147023 is 32074151.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15147023 - 2⁴ = 15147007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15147023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15147043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204653 + ... + 204726.

It is an arithmetic number, because the mean of its divisors is an integer number (3889110).

Almost surely, 2^15147023 is an apocalyptic number.

15147023 is a deficient number, since it is larger than the sum of its proper divisors (409417).

15147023 is an equidigital number, since it uses as much as digits as its factorization.

15147023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409416.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 15147023 is about 3891.9176507218. The cubic root of 15147023 is about 247.4243444576.

It can be divided in two parts, 151 and 47023, that added together give a palindrome (47174).

The spelling of 15147023 in words is "fifteen million, one hundred forty-seven thousand, twenty-three".