140365507 has 2 divisors, whose sum is σ = 140365508. Its totient is φ = 140365506.

The previous prime is 140365501. The next prime is 140365517. The reversal of 140365507 is 705563041.

It is a weak prime.

It is an emirp because it is prime and its reverse (705563041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140365507 is a prime.

It is not a weakly prime, because it can be changed into another prime (140365501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70182753 + 70182754.

It is an arithmetic number, because the mean of its divisors is an integer number (70182754).

Almost surely, 2^140365507 is an apocalyptic number.

140365507 is a deficient number, since it is larger than the sum of its proper divisors (1).

140365507 is an equidigital number, since it uses as much as digits as its factorization.

140365507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 140365507 is about 11847.5949880134. The cubic root of 140365507 is about 519.7008967762.

The spelling of 140365507 in words is "one hundred forty million, three hundred sixty-five thousand, five hundred seven".