124251161 has 2 divisors, whose sum is σ = 124251162. Its totient is φ = 124251160.

The previous prime is 124251139. The next prime is 124251199. The reversal of 124251161 is 161152421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67158025 + 57093136 = 8195^2 + 7556^2 .

It is a cyclic number.

It is not a de Polignac number, because 124251161 - 2⁶ = 124251097 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (124251461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62125580 + 62125581.

It is an arithmetic number, because the mean of its divisors is an integer number (62125581).

Almost surely, 2^124251161 is an apocalyptic number.

It is an amenable number.

124251161 is a deficient number, since it is larger than the sum of its proper divisors (1).

124251161 is an equidigital number, since it uses as much as digits as its factorization.

124251161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 23.

The square root of 124251161 is about 11146.8004826497. The cubic root of 124251161 is about 498.9995475248. Note that the first 3 decimals are identical.

The spelling of 124251161 in words is "one hundred twenty-four million, two hundred fifty-one thousand, one hundred sixty-one".