140608757 has 2 divisors, whose sum is σ = 140608758. Its totient is φ = 140608756.

The previous prime is 140608711. The next prime is 140608781. The reversal of 140608757 is 757806041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136632721 + 3976036 = 11689^2 + 1994^2 .

It is a cyclic number.

It is not a de Polignac number, because 140608757 - 2²⁰ = 139560181 is a prime.

It is a Chen prime.

It is equal to p_7944581 and since 140608757 and 7944581 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140608757.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140608057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70304378 + 70304379.

It is an arithmetic number, because the mean of its divisors is an integer number (70304379).

Almost surely, 2^140608757 is an apocalyptic number.

It is an amenable number.

140608757 is a deficient number, since it is larger than the sum of its proper divisors (1).

140608757 is an equidigital number, since it uses as much as digits as its factorization.

140608757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 140608757 is about 11857.8563408400. The cubic root of 140608757 is about 520.0009331837. Note that the first 3 decimals are identical.

The spelling of 140608757 in words is "one hundred forty million, six hundred eight thousand, seven hundred fifty-seven".