140971856 has 10 divisors (see below), whose sum is σ = 273133002. Its totient is φ = 70485920.

The previous prime is 140971841. The next prime is 140971879. The reversal of 140971856 is 658179041.

It can be written as a sum of positive squares in only one way, i.e., 139240000 + 1731856 = 11800^2 + 1316^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4405355 + ... + 4405386.

Almost surely, 2^140971856 is an apocalyptic number.

140971856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

140971856 is a deficient number, since it is larger than the sum of its proper divisors (132161146).

140971856 is an equidigital number, since it uses as much as digits as its factorization.

140971856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8810749 (or 8810743 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 140971856 is about 11873.1569517125. The cubic root of 140971856 is about 520.4481540882.

The spelling of 140971856 in words is "one hundred forty million, nine hundred seventy-one thousand, eight hundred fifty-six".