124854809161 has 2 divisors, whose sum is σ = 124854809162. Its totient is φ = 124854809160.

The previous prime is 124854809033. The next prime is 124854809171. The reversal of 124854809161 is 161908458421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116120785225 + 8734023936 = 340765^2 + 93456^2 .

It is a cyclic number.

It is not a de Polignac number, because 124854809161 - 2⁷ = 124854809033 is a prime.

It is not a weakly prime, because it can be changed into another prime (124854809171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62427404580 + 62427404581.

It is an arithmetic number, because the mean of its divisors is an integer number (62427404581).

Almost surely, 2^124854809161 is an apocalyptic number.

It is an amenable number.

124854809161 is a deficient number, since it is larger than the sum of its proper divisors (1).

124854809161 is an equidigital number, since it uses as much as digits as its factorization.

124854809161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 552960, while the sum is 49.

The spelling of 124854809161 in words is "one hundred twenty-four billion, eight hundred fifty-four million, eight hundred nine thousand, one hundred sixty-one".