124645013 has 2 divisors, whose sum is σ = 124645014. Its totient is φ = 124645012.

The previous prime is 124644983. The next prime is 124645033. The reversal of 124645013 is 310546421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118875409 + 5769604 = 10903^2 + 2402^2 .

It is a cyclic number.

It is not a de Polignac number, because 124645013 - 2¹² = 124640917 is a prime.

It is equal to p_7091081 and since 124645013 and 7091081 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124645033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62322506 + 62322507.

It is an arithmetic number, because the mean of its divisors is an integer number (62322507).

Almost surely, 2^124645013 is an apocalyptic number.

It is an amenable number.

124645013 is a deficient number, since it is larger than the sum of its proper divisors (1).

124645013 is an equidigital number, since it uses as much as digits as its factorization.

124645013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 124645013 is about 11164.4530990103. The cubic root of 124645013 is about 499.5262352357.

The spelling of 124645013 in words is "one hundred twenty-four million, six hundred forty-five thousand, thirteen".