124921273 has 2 divisors, whose sum is σ = 124921274. Its totient is φ = 124921272.

The previous prime is 124921271. The next prime is 124921283. The reversal of 124921273 is 372129421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64128064 + 60793209 = 8008^2 + 7797^2 .

It is a cyclic number.

It is not a de Polignac number, because 124921273 - 2¹ = 124921271 is a prime.

Together with 124921271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (124921271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62460636 + 62460637.

It is an arithmetic number, because the mean of its divisors is an integer number (62460637).

Almost surely, 2^124921273 is an apocalyptic number.

It is an amenable number.

124921273 is a deficient number, since it is larger than the sum of its proper divisors (1).

124921273 is an equidigital number, since it uses as much as digits as its factorization.

124921273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 124921273 is about 11176.8185544904. The cubic root of 124921273 is about 499.8950086218.

It can be divided in two parts, 1249 and 21273, that added together give a palindrome (22522).

The spelling of 124921273 in words is "one hundred twenty-four million, nine hundred twenty-one thousand, two hundred seventy-three".