124117949 has 2 divisors, whose sum is σ = 124117950. Its totient is φ = 124117948.

The previous prime is 124117879. The next prime is 124117963. The reversal of 124117949 is 949711421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96628900 + 27489049 = 9830^2 + 5243^2 .

It is an emirp because it is prime and its reverse (949711421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124117949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124117349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62058974 + 62058975.

It is an arithmetic number, because the mean of its divisors is an integer number (62058975).

Almost surely, 2^124117949 is an apocalyptic number.

It is an amenable number.

124117949 is a deficient number, since it is larger than the sum of its proper divisors (1).

124117949 is an equidigital number, since it uses as much as digits as its factorization.

124117949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 38.

The square root of 124117949 is about 11140.8235332941. The cubic root of 124117949 is about 498.8211548324.

The spelling of 124117949 in words is "one hundred twenty-four million, one hundred seventeen thousand, nine hundred forty-nine".