87140356 has 12 divisors (see below), whose sum is σ = 153135360. Its totient is φ = 43387400.

The previous prime is 87140341. The next prime is 87140363. The reversal of 87140356 is 65304178.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44620 + ... + 46531.

It is an arithmetic number, because the mean of its divisors is an integer number (12761280).

Almost surely, 2^87140356 is an apocalyptic number.

It is an amenable number.

87140356 is a deficient number, since it is larger than the sum of its proper divisors (65995004).

87140356 is a wasteful number, since it uses less digits than its factorization.

87140356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91394 (or 91392 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 87140356 is about 9334.8998923395. The cubic root of 87140356 is about 443.3429192468.

The spelling of 87140356 in words is "eighty-seven million, one hundred forty thousand, three hundred fifty-six".