140256707 has 2 divisors, whose sum is σ = 140256708. Its totient is φ = 140256706.

The previous prime is 140256671. The next prime is 140256713. The reversal of 140256707 is 707652041.

It is a strong prime.

It is an emirp because it is prime and its reverse (707652041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140256707 - 2⁶ = 140256643 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140256407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70128353 + 70128354.

It is an arithmetic number, because the mean of its divisors is an integer number (70128354).

Almost surely, 2^140256707 is an apocalyptic number.

140256707 is a deficient number, since it is larger than the sum of its proper divisors (1).

140256707 is an equidigital number, since it uses as much as digits as its factorization.

140256707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 140256707 is about 11843.0024487036. The cubic root of 140256707 is about 519.5665853527.

The spelling of 140256707 in words is "one hundred forty million, two hundred fifty-six thousand, seven hundred seven".