124492217 has 2 divisors, whose sum is σ = 124492218. Its totient is φ = 124492216.

The previous prime is 124492171. The next prime is 124492243. The reversal of 124492217 is 712294421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108659776 + 15832441 = 10424^2 + 3979^2 .

It is an emirp because it is prime and its reverse (712294421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124492217 - 2¹⁶ = 124426681 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (124492817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62246108 + 62246109.

It is an arithmetic number, because the mean of its divisors is an integer number (62246109).

Almost surely, 2^124492217 is an apocalyptic number.

It is an amenable number.

124492217 is a deficient number, since it is larger than the sum of its proper divisors (1).

124492217 is an equidigital number, since it uses as much as digits as its factorization.

124492217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 32.

The square root of 124492217 is about 11157.6080321904. The cubic root of 124492217 is about 499.3220371482.

The spelling of 124492217 in words is "one hundred twenty-four million, four hundred ninety-two thousand, two hundred seventeen".