124985123 has 2 divisors, whose sum is σ = 124985124. Its totient is φ = 124985122.

The previous prime is 124985111. The next prime is 124985129. The reversal of 124985123 is 321589421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 124985123 - 2¹⁰ = 124984099 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (124985129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62492561 + 62492562.

It is an arithmetic number, because the mean of its divisors is an integer number (62492562).

Almost surely, 2^124985123 is an apocalyptic number.

124985123 is a deficient number, since it is larger than the sum of its proper divisors (1).

124985123 is an equidigital number, since it uses as much as digits as its factorization.

124985123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 35.

The square root of 124985123 is about 11179.6745480358. The cubic root of 124985123 is about 499.9801632130.

The spelling of 124985123 in words is "one hundred twenty-four million, nine hundred eighty-five thousand, one hundred twenty-three".