124473121 has 2 divisors, whose sum is σ = 124473122. Its totient is φ = 124473120.

The previous prime is 124473119. The next prime is 124473137. The reversal of 124473121 is 121374421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108910096 + 15563025 = 10436^2 + 3945^2 .

It is a cyclic number.

It is not a de Polignac number, because 124473121 - 2¹ = 124473119 is a prime.

Together with 124473119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (124473221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62236560 + 62236561.

It is an arithmetic number, because the mean of its divisors is an integer number (62236561).

Almost surely, 2^124473121 is an apocalyptic number.

It is an amenable number.

124473121 is a deficient number, since it is larger than the sum of its proper divisors (1).

124473121 is an equidigital number, since it uses as much as digits as its factorization.

124473121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 25.

The square root of 124473121 is about 11156.7522604027. The cubic root of 124473121 is about 499.2965053214.

The spelling of 124473121 in words is "one hundred twenty-four million, four hundred seventy-three thousand, one hundred twenty-one".