124690129 has 4 divisors (see below), whose sum is σ = 126446400. Its totient is φ = 122933860.

The previous prime is 124690127. The next prime is 124690151. The reversal of 124690129 is 921096421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 124690129 - 2¹ = 124690127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124690094 and 124690103.

It is not an unprimeable number, because it can be changed into a prime (124690127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 878029 + ... + 878170.

It is an arithmetic number, because the mean of its divisors is an integer number (31611600).

Almost surely, 2^124690129 is an apocalyptic number.

It is an amenable number.

124690129 is a deficient number, since it is larger than the sum of its proper divisors (1756271).

124690129 is an equidigital number, since it uses as much as digits as its factorization.

124690129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756270.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 124690129 is about 11166.4734361391. The cubic root of 124690129 is about 499.5864967911.

The spelling of 124690129 in words is "one hundred twenty-four million, six hundred ninety thousand, one hundred twenty-nine".