140817139 has 2 divisors, whose sum is σ = 140817140. Its totient is φ = 140817138.

The previous prime is 140817107. The next prime is 140817143. The reversal of 140817139 is 931718041.

140817139 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 is a cyclic number.

It is not a de Polignac number, because 140817139 - 2⁵ = 140817107 is a prime.

It is a super-2 number, since 2×140817139² = 39658933272290642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140817169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70408569 + 70408570.

It is an arithmetic number, because the mean of its divisors is an integer number (70408570).

Almost surely, 2^140817139 is an apocalyptic number.

140817139 is a deficient number, since it is larger than the sum of its proper divisors (1).

140817139 is an equidigital number, since it uses as much as digits as its factorization.

140817139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 140817139 is about 11866.6397518421. The cubic root of 140817139 is about 520.2576866311.

The spelling of 140817139 in words is "one hundred forty million, eight hundred seventeen thousand, one hundred thirty-nine".