140813972 has 12 divisors (see below), whose sum is σ = 265380276. Its totient is φ = 64991040.

The previous prime is 140813963. The next prime is 140813977. The reversal of 140813972 is 279318041.

It can be written as a sum of positive squares in 2 ways, for example, as 93973636 + 46840336 = 9694^2 + 6844^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140813977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1353929 + ... + 1354032.

It is an arithmetic number, because the mean of its divisors is an integer number (22115023).

Almost surely, 2^140813972 is an apocalyptic number.

It is an amenable number.

140813972 is a deficient number, since it is larger than the sum of its proper divisors (124566304).

140813972 is a wasteful number, since it uses less digits than its factorization.

140813972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2707978 (or 2707976 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 140813972 is about 11866.5063097780. The cubic root of 140813972 is about 520.2537863756.

The spelling of 140813972 in words is "one hundred forty million, eight hundred thirteen thousand, nine hundred seventy-two".