87157126 has 32 divisors (see below), whose sum is σ = 154912320. Its totient is φ = 35997696.

The previous prime is 87157117. The next prime is 87157127. The reversal of 87157126 is 62175178.

It is a super-2 number, since 2×87157126² = 15192729225159752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87157127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57790 + ... + 59278.

It is an arithmetic number, because the mean of its divisors is an integer number (4841010).

Almost surely, 2^87157126 is an apocalyptic number.

87157126 is a deficient number, since it is larger than the sum of its proper divisors (67755194).

87157126 is a wasteful number, since it uses less digits than its factorization.

87157126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648.

The product of its digits is 23520, while the sum is 37.

The square root of 87157126 is about 9335.7980912186. The cubic root of 87157126 is about 443.3713575969.

The spelling of 87157126 in words is "eighty-seven million, one hundred fifty-seven thousand, one hundred twenty-six".