15297423 has 4 divisors (see below), whose sum is σ = 20396568. Its totient is φ = 10198280.

The previous prime is 15297421. The next prime is 15297437. The reversal of 15297423 is 32479251.

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 15297423 - 2¹ = 15297421 is a prime.

It is a super-2 number, since 2×15297423² = 468022300881858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15297421) 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, 2549568 + ... + 2549573.

It is an arithmetic number, because the mean of its divisors is an integer number (5099142).

Almost surely, 2^15297423 is an apocalyptic number.

15297423 is a deficient number, since it is larger than the sum of its proper divisors (5099145).

15297423 is an equidigital number, since it uses as much as digits as its factorization.

15297423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5099144.

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

The square root of 15297423 is about 3911.1920177869. The cubic root of 15297423 is about 248.2405693295.

The spelling of 15297423 in words is "fifteen million, two hundred ninety-seven thousand, four hundred twenty-three".