15002981 has 8 divisors (see below), whose sum is σ = 17184384. Its totient is φ = 12831120.

The previous prime is 15002963. The next prime is 15002987. The reversal of 15002981 is 18920051.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15002981 is a prime.

It is a super-2 number, since 2×15002981² = 450178877772722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15002981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15002987) 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, 1391 + ... + 5651.

It is an arithmetic number, because the mean of its divisors is an integer number (2148048).

Almost surely, 2^15002981 is an apocalyptic number.

It is an amenable number.

15002981 is a deficient number, since it is larger than the sum of its proper divisors (2181403).

15002981 is an equidigital number, since it uses as much as digits as its factorization.

15002981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4771.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 15002981 is about 3873.3681725341. The cubic root of 15002981 is about 246.6375436358.

The spelling of 15002981 in words is "fifteen million, two thousand, nine hundred eighty-one".