124925861 has 2 divisors, whose sum is σ = 124925862. Its totient is φ = 124925860.

The previous prime is 124925839. The next prime is 124925863. The reversal of 124925861 is 168529421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100620961 + 24304900 = 10031^2 + 4930^2 .

It is a cyclic number.

It is not a de Polignac number, because 124925861 - 2⁶ = 124925797 is a prime.

Together with 124925863, 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 (124925863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62462930 + 62462931.

It is an arithmetic number, because the mean of its divisors is an integer number (62462931).

Almost surely, 2^124925861 is an apocalyptic number.

It is an amenable number.

124925861 is a deficient number, since it is larger than the sum of its proper divisors (1).

124925861 is an equidigital number, since it uses as much as digits as its factorization.

124925861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 38.

The square root of 124925861 is about 11177.0237988473. The cubic root of 124925861 is about 499.9011284501.

The spelling of 124925861 in words is "one hundred twenty-four million, nine hundred twenty-five thousand, eight hundred sixty-one".