87912145 has 8 divisors (see below), whose sum is σ = 111047040. Its totient is φ = 66628080.

The previous prime is 87912133. The next prime is 87912157. The reversal of 87912145 is 54121978.

It is an interprime number because it is at equal distance from previous prime (87912133) and next prime (87912157).

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

It is not a de Polignac number, because 87912145 - 2⁵ = 87912113 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462601 + ... + 462790.

It is an arithmetic number, because the mean of its divisors is an integer number (13880880).

Almost surely, 2^87912145 is an apocalyptic number.

It is an amenable number.

87912145 is a deficient number, since it is larger than the sum of its proper divisors (23134895).

87912145 is a wasteful number, since it uses less digits than its factorization.

87912145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925415.

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

The square root of 87912145 is about 9376.1476630864. The cubic root of 87912145 is about 444.6479477889.

The spelling of 87912145 in words is "eighty-seven million, nine hundred twelve thousand, one hundred forty-five".