15087061 has 4 divisors (see below), whose sum is σ = 16458624. Its totient is φ = 13715500.

The previous prime is 15087043. The next prime is 15087073. The reversal of 15087061 is 16078051.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16078051 = 11 ⋅1461641.

It is a cyclic number.

It is not a de Polignac number, because 15087061 - 2⁵ = 15087029 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 (15087001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685765 + ... + 685786.

It is an arithmetic number, because the mean of its divisors is an integer number (4114656).

Almost surely, 2^15087061 is an apocalyptic number.

15087061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

15087061 is a deficient number, since it is larger than the sum of its proper divisors (1371563).

15087061 is a wasteful number, since it uses less digits than its factorization.

15087061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371562.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 15087061 is about 3884.2066113944. The cubic root of 15087061 is about 247.0974225995.

The spelling of 15087061 in words is "fifteen million, eighty-seven thousand, sixty-one".