124521029 has 2 divisors, whose sum is σ = 124521030. Its totient is φ = 124521028.

The previous prime is 124521013. The next prime is 124521031. The reversal of 124521029 is 920125421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116596804 + 7924225 = 10798^2 + 2815^2 .

It is a cyclic number.

It is not a de Polignac number, because 124521029 - 2⁴ = 124521013 is a prime.

Together with 124521031, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 124520989 and 124521007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124521049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62260514 + 62260515.

It is an arithmetic number, because the mean of its divisors is an integer number (62260515).

Almost surely, 2^124521029 is an apocalyptic number.

It is an amenable number.

124521029 is a deficient number, since it is larger than the sum of its proper divisors (1).

124521029 is an equidigital number, since it uses as much as digits as its factorization.

124521029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 124521029 is about 11158.8990944448. The cubic root of 124521029 is about 499.3605545677.

The spelling of 124521029 in words is "one hundred twenty-four million, five hundred twenty-one thousand, twenty-nine".