140938312 has 8 divisors (see below), whose sum is σ = 264259350. Its totient is φ = 70469152.

The previous prime is 140938309. The next prime is 140938349. The reversal of 140938312 is 213839041.

It can be written as a sum of positive squares in only one way, i.e., 112911876 + 28026436 = 10626^2 + 5294^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8808637 + ... + 8808652.

Almost surely, 2^140938312 is an apocalyptic number.

It is an amenable number.

140938312 is a deficient number, since it is larger than the sum of its proper divisors (123321038).

140938312 is a wasteful number, since it uses less digits than its factorization.

140938312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17617295 (or 17617291 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 140938312 is about 11871.7442694829. The cubic root of 140938312 is about 520.4068709124.

The spelling of 140938312 in words is "one hundred forty million, nine hundred thirty-eight thousand, three hundred twelve".