124121149 has 2 divisors, whose sum is σ = 124121150. Its totient is φ = 124121148.

The previous prime is 124121143. The next prime is 124121201. The reversal of 124121149 is 941121421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123609924 + 511225 = 11118^2 + 715^2 .

It is a cyclic number.

It is not a de Polignac number, because 124121149 - 2³ = 124121141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124121141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62060574 + 62060575.

It is an arithmetic number, because the mean of its divisors is an integer number (62060575).

Almost surely, 2^124121149 is an apocalyptic number.

It is an amenable number.

124121149 is a deficient number, since it is larger than the sum of its proper divisors (1).

124121149 is an equidigital number, since it uses as much as digits as its factorization.

124121149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 25.

The square root of 124121149 is about 11140.9671483224. The cubic root of 124121149 is about 498.8254416526.

The spelling of 124121149 in words is "one hundred twenty-four million, one hundred twenty-one thousand, one hundred forty-nine".