124077409 has 2 divisors, whose sum is σ = 124077410. Its totient is φ = 124077408.

The previous prime is 124077383. The next prime is 124077419. The reversal of 124077409 is 904770421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123832384 + 245025 = 11128^2 + 495^2 .

It is an emirp because it is prime and its reverse (904770421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124077409 - 2¹³ = 124069217 is a prime.

It is not a weakly prime, because it can be changed into another prime (124077419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62038704 + 62038705.

It is an arithmetic number, because the mean of its divisors is an integer number (62038705).

Almost surely, 2^124077409 is an apocalyptic number.

It is an amenable number.

124077409 is a deficient number, since it is larger than the sum of its proper divisors (1).

124077409 is an equidigital number, since it uses as much as digits as its factorization.

124077409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 124077409 is about 11139.0039500846. The cubic root of 124077409 is about 498.7668397988.

The spelling of 124077409 in words is "one hundred twenty-four million, seventy-seven thousand, four hundred nine".