87113155 has 8 divisors (see below), whose sum is σ = 104592384. Its totient is φ = 69652800.

The previous prime is 87113153. The next prime is 87113161. The reversal of 87113155 is 55131178.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87113155 - 2¹ = 87113153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87113153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9150 + ... + 16060.

It is an arithmetic number, because the mean of its divisors is an integer number (13074048).

Almost surely, 2^87113155 is an apocalyptic number.

87113155 is a deficient number, since it is larger than the sum of its proper divisors (17479229).

87113155 is a wasteful number, since it uses less digits than its factorization.

87113155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9437.

The product of its digits is 4200, while the sum is 31.

The square root of 87113155 is about 9333.4428267387. The cubic root of 87113155 is about 443.2967843815.

The spelling of 87113155 in words is "eighty-seven million, one hundred thirteen thousand, one hundred fifty-five".