140122613 has 2 divisors, whose sum is σ = 140122614. Its totient is φ = 140122612.

The previous prime is 140122607. The next prime is 140122627. The reversal of 140122613 is 316221041.

140122613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137757169 + 2365444 = 11737^2 + 1538^2 .

It is a cyclic number.

It is not a de Polignac number, because 140122613 - 2²⁶ = 73013749 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140122603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70061306 + 70061307.

It is an arithmetic number, because the mean of its divisors is an integer number (70061307).

Almost surely, 2^140122613 is an apocalyptic number.

It is an amenable number.

140122613 is a deficient number, since it is larger than the sum of its proper divisors (1).

140122613 is an equidigital number, since it uses as much as digits as its factorization.

140122613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 140122613 is about 11837.3397771628. The cubic root of 140122613 is about 519.4009534003.

Adding to 140122613 its reverse (316221041), we get a palindrome (456343654).

The spelling of 140122613 in words is "one hundred forty million, one hundred twenty-two thousand, six hundred thirteen".