124256898449 has 2 divisors, whose sum is σ = 124256898450. Its totient is φ = 124256898448.

The previous prime is 124256898433. The next prime is 124256898541. The reversal of 124256898449 is 944898652421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79622730625 + 44634167824 = 282175^2 + 211268^2 .

It is a cyclic number.

It is not a de Polignac number, because 124256898449 - 2⁴ = 124256898433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124256898391 and 124256898400.

It is not a weakly prime, because it can be changed into another prime (124256898949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62128449224 + 62128449225.

It is an arithmetic number, because the mean of its divisors is an integer number (62128449225).

Almost surely, 2^124256898449 is an apocalyptic number.

It is an amenable number.

124256898449 is a deficient number, since it is larger than the sum of its proper divisors (1).

124256898449 is an equidigital number, since it uses as much as digits as its factorization.

124256898449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39813120, while the sum is 62.

The spelling of 124256898449 in words is "one hundred twenty-four billion, two hundred fifty-six million, eight hundred ninety-eight thousand, four hundred forty-nine".