16115087 has 4 divisors (see below), whose sum is σ = 16167216. Its totient is φ = 16062960.

The previous prime is 16115063. The next prime is 16115089. The reversal of 16115087 is 78051161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78051161 = 47 ⋅1660663.

It is a cyclic number.

It is not a de Polignac number, because 16115087 - 2⁶ = 16115023 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 (16115089) 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, 25598 + ... + 26219.

It is an arithmetic number, because the mean of its divisors is an integer number (4041804).

Almost surely, 2^16115087 is an apocalyptic number.

16115087 is a deficient number, since it is larger than the sum of its proper divisors (52129).

16115087 is an equidigital number, since it uses as much as digits as its factorization.

16115087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52128.

The product of its (nonzero) digits is 1680, while the sum is 29.

The square root of 16115087 is about 4014.3600984466. The cubic root of 16115087 is about 252.5869360481.

The spelling of 16115087 in words is "sixteen million, one hundred fifteen thousand, eighty-seven".