15082991 has 8 divisors (see below), whose sum is σ = 18804864. Its totient is φ = 11752920.

The previous prime is 15082967. The next prime is 15082993. The reversal of 15082991 is 19928051.

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 15082991 - 2¹⁸ = 14820847 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 (15082993) 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, 97865 + ... + 98018.

It is an arithmetic number, because the mean of its divisors is an integer number (2350608).

Almost surely, 2^15082991 is an apocalyptic number.

15082991 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15082991 is a deficient number, since it is larger than the sum of its proper divisors (3721873).

15082991 is a wasteful number, since it uses less digits than its factorization.

15082991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195901.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 15082991 is about 3883.6826595385. The cubic root of 15082991 is about 247.0752009763.

The spelling of 15082991 in words is "fifteen million, eighty-two thousand, nine hundred ninety-one".