140977361 has 12 divisors (see below), whose sum is σ = 164197620. Its totient is φ = 120687840.

The previous prime is 140977351. The next prime is 140977399. The reversal of 140977361 is 163779041.

It can be written as a sum of positive squares in 2 ways, for example, as 122323600 + 18653761 = 11060^2 + 4319^2 .

It is not a de Polignac number, because 140977361 - 2¹⁴ = 140960977 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140977301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59051 + ... + 61391.

It is an arithmetic number, because the mean of its divisors is an integer number (13683135).

Almost surely, 2^140977361 is an apocalyptic number.

It is an amenable number.

140977361 is a deficient number, since it is larger than the sum of its proper divisors (23220259).

140977361 is a wasteful number, since it uses less digits than its factorization.

140977361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3584 (or 3577 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 140977361 is about 11873.3887749033. The cubic root of 140977361 is about 520.4549285605.

The spelling of 140977361 in words is "one hundred forty million, nine hundred seventy-seven thousand, three hundred sixty-one".