11487015 has 40 divisors (see below), whose sum is σ = 20856528. Its totient is φ = 6048000.

The previous prime is 11486989. The next prime is 11487017. The reversal of 11487015 is 51078411.

It is not a de Polignac number, because 11487015 - 2⁸ = 11486759 is a prime.

It is a super-2 number, since 2×11487015² = 263903027220450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 11487015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11487017) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 45640 + ... + 45890.

Almost surely, 2^11487015 is an apocalyptic number.

11487015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11487015 is the 1695-th decagonal number.

11487015 is a deficient number, since it is larger than the sum of its proper divisors (9369513).

11487015 is a wasteful number, since it uses less digits than its factorization.

11487015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 11487015 is about 3389.2499170170. The cubic root of 11487015 is about 225.6328848056.

The spelling of 11487015 in words is "eleven million, four hundred eighty-seven thousand, fifteen".