124213129 has 2 divisors, whose sum is σ = 124213130. Its totient is φ = 124213128.

The previous prime is 124213091. The next prime is 124213153. The reversal of 124213129 is 921312421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122655625 + 1557504 = 11075^2 + 1248^2 .

It is a cyclic number.

It is not a de Polignac number, because 124213129 - 2¹³ = 124204937 is a prime.

It is not a weakly prime, because it can be changed into another prime (124213189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62106564 + 62106565.

It is an arithmetic number, because the mean of its divisors is an integer number (62106565).

Almost surely, 2^124213129 is an apocalyptic number.

It is an amenable number.

124213129 is a deficient number, since it is larger than the sum of its proper divisors (1).

124213129 is an equidigital number, since it uses as much as digits as its factorization.

124213129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 25.

The square root of 124213129 is about 11145.0943917044. The cubic root of 124213129 is about 498.9486294562.

The spelling of 124213129 in words is "one hundred twenty-four million, two hundred thirteen thousand, one hundred twenty-nine".