87183140 has 48 divisors (see below), whose sum is σ = 211486464. Its totient is φ = 29836800.

The previous prime is 87183127. The next prime is 87183143. The reversal of 87183140 is 4138178.

It is a junction number, because it is equal to n+sod(n) for n = 87183097 and 87183106.

It is not an unprimeable number, because it can be changed into a prime (87183143) 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, 7916 + ... + 15395.

It is an arithmetic number, because the mean of its divisors is an integer number (4405968).

Almost surely, 2^87183140 is an apocalyptic number.

It is an amenable number.

87183140 is an abundant number, since it is smaller than the sum of its proper divisors (124303324).

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

87183140 is a wasteful number, since it uses less digits than its factorization.

87183140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23348 (or 23346 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 87183140 is about 9337.1912264878. The cubic root of 87183140 is about 443.4154645858.

The spelling of 87183140 in words is "eighty-seven million, one hundred eighty-three thousand, one hundred forty".