140679277 has 2 divisors, whose sum is σ = 140679278. Its totient is φ = 140679276.

The previous prime is 140679263. The next prime is 140679281. The reversal of 140679277 is 772976041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133888041 + 6791236 = 11571^2 + 2606^2 .

It is a cyclic number.

It is not a de Polignac number, because 140679277 - 2²⁷ = 6461549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140679677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70339638 + 70339639.

It is an arithmetic number, because the mean of its divisors is an integer number (70339639).

Almost surely, 2^140679277 is an apocalyptic number.

It is an amenable number.

140679277 is a deficient number, since it is larger than the sum of its proper divisors (1).

140679277 is an equidigital number, since it uses as much as digits as its factorization.

140679277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 43.

The square root of 140679277 is about 11860.8295241100. The cubic root of 140679277 is about 520.0878512814.

The spelling of 140679277 in words is "one hundred forty million, six hundred seventy-nine thousand, two hundred seventy-seven".