87075157 has 16 divisors (see below), whose sum is σ = 99207360. Its totient is φ = 75762432.

The previous prime is 87075127. The next prime is 87075169. The reversal of 87075157 is 75157078.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87075157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87075127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55293 + ... + 56845.

It is an arithmetic number, because the mean of its divisors is an integer number (6200460).

Almost surely, 2^87075157 is an apocalyptic number.

87075157 is the 5902-nd heptagonal number.

It is an amenable number.

87075157 is a deficient number, since it is larger than the sum of its proper divisors (12132203).

87075157 is a wasteful number, since it uses less digits than its factorization.

87075157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812.

The product of its (nonzero) digits is 68600, while the sum is 40.

The square root of 87075157 is about 9331.4070214518. The cubic root of 87075157 is about 443.2323209415.

The spelling of 87075157 in words is "eighty-seven million, seventy-five thousand, one hundred fifty-seven".