139962629 has 2 divisors, whose sum is σ = 139962630. Its totient is φ = 139962628.

The previous prime is 139962623. The next prime is 139962637. The reversal of 139962629 is 926269931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134212225 + 5750404 = 11585^2 + 2398^2 .

It is a cyclic number.

It is not a de Polignac number, because 139962629 - 2⁸ = 139962373 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139962623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69981314 + 69981315.

It is an arithmetic number, because the mean of its divisors is an integer number (69981315).

Almost surely, 2^139962629 is an apocalyptic number.

It is an amenable number.

139962629 is a deficient number, since it is larger than the sum of its proper divisors (1).

139962629 is an equidigital number, since it uses as much as digits as its factorization.

139962629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 314928, while the sum is 47.

The square root of 139962629 is about 11830.5802478154. The cubic root of 139962629 is about 519.2032040028.

The spelling of 139962629 in words is "one hundred thirty-nine million, nine hundred sixty-two thousand, six hundred twenty-nine".