87254140 has 24 divisors (see below), whose sum is σ = 188187552. Its totient is φ = 33958080.

The previous prime is 87254131. The next prime is 87254143. The reversal of 87254140 is 4145278.

It is a super-2 number, since 2×87254140² = 15226569894279200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87254143) 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, 58216 + ... + 59695.

It is an arithmetic number, because the mean of its divisors is an integer number (7841148).

Almost surely, 2^87254140 is an apocalyptic number.

It is an amenable number.

87254140 is an abundant number, since it is smaller than the sum of its proper divisors (100933412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87254140 is a wasteful number, since it uses less digits than its factorization.

87254140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117957 (or 117955 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 87254140 is about 9340.9924526251. The cubic root of 87254140 is about 443.5358011388.

The spelling of 87254140 in words is "eighty-seven million, two hundred fifty-four thousand, one hundred forty".