124701257 has 2 divisors, whose sum is σ = 124701258. Its totient is φ = 124701256.

The previous prime is 124701223. The next prime is 124701259. The reversal of 124701257 is 752107421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95335696 + 29365561 = 9764^2 + 5419^2 .

It is a cyclic number.

It is not a de Polignac number, because 124701257 - 2¹² = 124697161 is a prime.

Together with 124701259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (124701259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62350628 + 62350629.

It is an arithmetic number, because the mean of its divisors is an integer number (62350629).

Almost surely, 2^124701257 is an apocalyptic number.

It is an amenable number.

124701257 is a deficient number, since it is larger than the sum of its proper divisors (1).

124701257 is an equidigital number, since it uses as much as digits as its factorization.

124701257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 124701257 is about 11166.9717023014. The cubic root of 124701257 is about 499.6013582540.

Adding to 124701257 its reverse (752107421), we get a palindrome (876808678).

The spelling of 124701257 in words is "one hundred twenty-four million, seven hundred one thousand, two hundred fifty-seven".