140713231 has 2 divisors, whose sum is σ = 140713232. Its totient is φ = 140713230.

The previous prime is 140713229. The next prime is 140713319. The reversal of 140713231 is 132317041.

It is a weak prime.

It is an emirp because it is prime and its reverse (132317041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140713231 - 2¹ = 140713229 is a prime.

It is a super-2 number, since 2×140713231² = 39600426756918722, which contains 22 as substring.

Together with 140713229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140713211) 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, 70356615 + 70356616.

It is an arithmetic number, because the mean of its divisors is an integer number (70356616).

Almost surely, 2^140713231 is an apocalyptic number.

140713231 is a deficient number, since it is larger than the sum of its proper divisors (1).

140713231 is an equidigital number, since it uses as much as digits as its factorization.

140713231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 140713231 is about 11862.2607878937. The cubic root of 140713231 is about 520.1296902851.

The spelling of 140713231 in words is "one hundred forty million, seven hundred thirteen thousand, two hundred thirty-one".