87154291 has 24 divisors (see below), whose sum is σ = 112039200. Its totient is φ = 67237632.

The previous prime is 87154279. The next prime is 87154297. The reversal of 87154291 is 19245178.

It is not a de Polignac number, because 87154291 - 2¹⁵ = 87121523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87154291.

It is not an unprimeable number, because it can be changed into a prime (87154297) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16885 + ... + 21433.

It is an arithmetic number, because the mean of its divisors is an integer number (4668300).

Almost surely, 2^87154291 is an apocalyptic number.

87154291 is a deficient number, since it is larger than the sum of its proper divisors (24884909).

87154291 is a wasteful number, since it uses less digits than its factorization.

87154291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4603 (or 4596 counting only the distinct ones).

The product of its digits is 20160, while the sum is 37.

The square root of 87154291 is about 9335.6462550806. The cubic root of 87154291 is about 443.3665502966.

The spelling of 87154291 in words is "eighty-seven million, one hundred fifty-four thousand, two hundred ninety-one".