124153121 has 2 divisors, whose sum is σ = 124153122. Its totient is φ = 124153120.

The previous prime is 124153111. The next prime is 124153123. The reversal of 124153121 is 121351421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104448400 + 19704721 = 10220^2 + 4439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124153121 is a prime.

Together with 124153123, 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 = 124153093 and 124153102.

It is not a weakly prime, because it can be changed into another prime (124153123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62076560 + 62076561.

It is an arithmetic number, because the mean of its divisors is an integer number (62076561).

Almost surely, 2^124153121 is an apocalyptic number.

It is an amenable number.

124153121 is a deficient number, since it is larger than the sum of its proper divisors (1).

124153121 is an equidigital number, since it uses as much as digits as its factorization.

124153121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 240, while the sum is 20.

The square root of 124153121 is about 11142.4019403358. The cubic root of 124153121 is about 498.8682682994.

The spelling of 124153121 in words is "one hundred twenty-four million, one hundred fifty-three thousand, one hundred twenty-one".