124628261 has 2 divisors, whose sum is σ = 124628262. Its totient is φ = 124628260.

The previous prime is 124628227. The next prime is 124628263. The reversal of 124628261 is 162826421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91565761 + 33062500 = 9569^2 + 5750^2 .

It is a cyclic number.

It is not a de Polignac number, because 124628261 - 2⁶ = 124628197 is a prime.

Together with 124628263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124628263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62314130 + 62314131.

It is an arithmetic number, because the mean of its divisors is an integer number (62314131).

Almost surely, 2^124628261 is an apocalyptic number.

It is an amenable number.

124628261 is a deficient number, since it is larger than the sum of its proper divisors (1).

124628261 is an equidigital number, since it uses as much as digits as its factorization.

124628261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 32.

The square root of 124628261 is about 11163.7028355291. The cubic root of 124628261 is about 499.5038558448.

The spelling of 124628261 in words is "one hundred twenty-four million, six hundred twenty-eight thousand, two hundred sixty-one".