140931757 has 2 divisors, whose sum is σ = 140931758. Its totient is φ = 140931756.

The previous prime is 140931737. The next prime is 140931761. The reversal of 140931757 is 757139041.

140931757 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133888041 + 7043716 = 11571^2 + 2654^2 .

It is a cyclic number.

It is not a de Polignac number, because 140931757 - 2⁷ = 140931629 is a prime.

It is a super-2 number, since 2×140931757² = 39723520262214098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140931737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70465878 + 70465879.

It is an arithmetic number, because the mean of its divisors is an integer number (70465879).

Almost surely, 2^140931757 is an apocalyptic number.

It is an amenable number.

140931757 is a deficient number, since it is larger than the sum of its proper divisors (1).

140931757 is an equidigital number, since it uses as much as digits as its factorization.

140931757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 140931757 is about 11871.4681905820. The cubic root of 140931757 is about 520.3988027964.

The spelling of 140931757 in words is "one hundred forty million, nine hundred thirty-one thousand, seven hundred fifty-seven".