140042677 has 2 divisors, whose sum is σ = 140042678. Its totient is φ = 140042676.

The previous prime is 140042671. The next prime is 140042681. The reversal of 140042677 is 776240041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117375556 + 22667121 = 10834^2 + 4761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140042677 is a prime.

It is a super-2 number, since 2×140042677² = 39223902762652658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140042671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70021338 + 70021339.

It is an arithmetic number, because the mean of its divisors is an integer number (70021339).

Almost surely, 2^140042677 is an apocalyptic number.

It is an amenable number.

140042677 is a deficient number, since it is larger than the sum of its proper divisors (1).

140042677 is an equidigital number, since it uses as much as digits as its factorization.

140042677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 140042677 is about 11833.9628611890. The cubic root of 140042677 is about 519.3021667464.

The spelling of 140042677 in words is "one hundred forty million, forty-two thousand, six hundred seventy-seven".