140251264 has 16 divisors (see below), whose sum is σ = 279407070. Its totient is φ = 70125568.

The previous prime is 140251253. The next prime is 140251271. The reversal of 140251264 is 462152041.

It is a happy number.

140251264 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 129960000 + 10291264 = 11400^2 + 3208^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 547729 + ... + 547984.

Almost surely, 2^140251264 is an apocalyptic number.

It is an amenable number.

140251264 is a deficient number, since it is larger than the sum of its proper divisors (139155806).

140251264 is an equidigital number, since it uses as much as digits as its factorization.

140251264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095727 (or 1095715 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 140251264 is about 11842.7726483286. The cubic root of 140251264 is about 519.5598642540.

The spelling of 140251264 in words is "one hundred forty million, two hundred fifty-one thousand, two hundred sixty-four".