15272661 has 8 divisors (see below), whose sum is σ = 20436640. Its totient is φ = 10145232.

The previous prime is 15272659. The next prime is 15272689. The reversal of 15272661 is 16627251.

15272661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 15272661 - 2¹ = 15272659 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 (15272641) 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, 8146 + ... + 9843.

It is an arithmetic number, because the mean of its divisors is an integer number (2554580).

Almost surely, 2^15272661 is an apocalyptic number.

It is an amenable number.

15272661 is a deficient number, since it is larger than the sum of its proper divisors (5163979).

15272661 is a wasteful number, since it uses less digits than its factorization.

15272661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18275.

The product of its digits is 5040, while the sum is 30.

The square root of 15272661 is about 3908.0252046270. The cubic root of 15272661 is about 248.1065543246.

The spelling of 15272661 in words is "fifteen million, two hundred seventy-two thousand, six hundred sixty-one".