140699968 has 14 divisors (see below), whose sum is σ = 279201626. Its totient is φ = 70349952.

The previous prime is 140699941. The next prime is 140699983. The reversal of 140699968 is 869996041.

It can be written as a sum of positive squares in only one way, i.e., 138485824 + 2214144 = 11768^2 + 1488^2 .

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, 1099155 + ... + 1099282.

Almost surely, 2^140699968 is an apocalyptic number.

It is an amenable number.

140699968 is a deficient number, since it is larger than the sum of its proper divisors (138501658).

140699968 is an equidigital number, since it uses as much as digits as its factorization.

140699968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2198449 (or 2198439 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 140699968 is about 11861.7017328881. The cubic root of 140699968 is about 520.1133480720.

The spelling of 140699968 in words is "one hundred forty million, six hundred ninety-nine thousand, nine hundred sixty-eight".