15148987 has 12 divisors (see below), whose sum is σ = 18192576. Its totient is φ = 12564720.

The previous prime is 15148981. The next prime is 15148999. The reversal of 15148987 is 78984151.

It is a happy number.

It is not a de Polignac number, because 15148987 - 2¹¹ = 15146939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15148981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3468 + ... + 6505.

It is an arithmetic number, because the mean of its divisors is an integer number (1516048).

Almost surely, 2^15148987 is an apocalyptic number.

15148987 is a deficient number, since it is larger than the sum of its proper divisors (3043589).

15148987 is an equidigital number, since it uses as much as digits as its factorization.

15148987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10018 (or 10011 counting only the distinct ones).

The product of its digits is 80640, while the sum is 43.

The square root of 15148987 is about 3892.1699603178. The cubic root of 15148987 is about 247.4350378770.

It can be divided in two parts, 1514 and 8987, that added together give a palindrome (10501).

The spelling of 15148987 in words is "fifteen million, one hundred forty-eight thousand, nine hundred eighty-seven".