15272389 has 8 divisors (see below), whose sum is σ = 16693632. Its totient is φ = 13856640.

The previous prime is 15272381. The next prime is 15272393. The reversal of 15272389 is 98327251.

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

It is a cyclic number.

It is not a de Polignac number, because 15272389 - 2³ = 15272381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15272381) 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 7 ways as a sum of consecutive naturals, for example, 6372 + ... + 8434.

It is an arithmetic number, because the mean of its divisors is an integer number (2086704).

Almost surely, 2^15272389 is an apocalyptic number.

It is an amenable number.

15272389 is a deficient number, since it is larger than the sum of its proper divisors (1421243).

15272389 is a wasteful number, since it uses less digits than its factorization.

15272389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747.

The product of its digits is 30240, while the sum is 37.

The square root of 15272389 is about 3907.9904042871. The cubic root of 15272389 is about 248.1050814230.

It can be divided in two parts, 1527 and 2389, that added together give a triangular number (3916 = T₈₈).

The spelling of 15272389 in words is "fifteen million, two hundred seventy-two thousand, three hundred eighty-nine".