15791261 has 8 divisors (see below), whose sum is σ = 16658880. Its totient is φ = 14927328.

The previous prime is 15791257. The next prime is 15791311. The reversal of 15791261 is 16219751.

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 15791261 - 2² = 15791257 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 (15791221) 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, 16385 + ... + 17321.

It is an arithmetic number, because the mean of its divisors is an integer number (2082360).

Almost surely, 2^15791261 is an apocalyptic number.

It is an amenable number.

15791261 is a deficient number, since it is larger than the sum of its proper divisors (867619).

15791261 is an equidigital number, since it uses as much as digits as its factorization.

15791261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843.

The product of its digits is 3780, while the sum is 32.

The square root of 15791261 is about 3973.8219638026. The cubic root of 15791261 is about 250.8835986676.

The spelling of 15791261 in words is "fifteen million, seven hundred ninety-one thousand, two hundred sixty-one".