49699129 has 2 divisors, whose sum is σ = 49699130. Its totient is φ = 49699128.

The previous prime is 49699123. The next prime is 49699141. The reversal of 49699129 is 92199694.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48372025 + 1327104 = 6955^2 + 1152^2 .

It is a cyclic number.

It is not a de Polignac number, because 49699129 - 2¹⁹ = 49174841 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49699123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24849564 + 24849565.

It is an arithmetic number, because the mean of its divisors is an integer number (24849565).

Almost surely, 2^49699129 is an apocalyptic number.

It is an amenable number.

49699129 is a deficient number, since it is larger than the sum of its proper divisors (1).

49699129 is an equidigital number, since it uses as much as digits as its factorization.

49699129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 314928, while the sum is 49.

The square root of 49699129 is about 7049.7609179319. The cubic root of 49699129 is about 367.6627172133.

The spelling of 49699129 in words is "forty-nine million, six hundred ninety-nine thousand, one hundred twenty-nine".