129996037 has 2 divisors, whose sum is σ = 129996038. Its totient is φ = 129996036.

The previous prime is 129996029. The next prime is 129996049. The reversal of 129996037 is 730699921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76983076 + 53012961 = 8774^2 + 7281^2 .

It is a cyclic number.

It is not a de Polignac number, because 129996037 - 2³ = 129996029 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 (129996077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64998018 + 64998019.

It is an arithmetic number, because the mean of its divisors is an integer number (64998019).

Almost surely, 2^129996037 is an apocalyptic number.

It is an amenable number.

129996037 is a deficient number, since it is larger than the sum of its proper divisors (1).

129996037 is an equidigital number, since it uses as much as digits as its factorization.

129996037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 183708, while the sum is 46.

The square root of 129996037 is about 11401.5804606204. The cubic root of 129996037 is about 506.5745542287.

It can be divided in two parts, 1299 and 96037, that added together give a cube (97336 = 46³).

The spelling of 129996037 in words is "one hundred twenty-nine million, nine hundred ninety-six thousand, thirty-seven".