124457897 has 2 divisors, whose sum is σ = 124457898. Its totient is φ = 124457896.

The previous prime is 124457891. The next prime is 124457911. The reversal of 124457897 is 798754421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97042201 + 27415696 = 9851^2 + 5236^2 .

It is an emirp because it is prime and its reverse (798754421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124457897 - 2⁴ = 124457881 is a prime.

It is not a weakly prime, because it can be changed into another prime (124457891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62228948 + 62228949.

It is an arithmetic number, because the mean of its divisors is an integer number (62228949).

Almost surely, 2^124457897 is an apocalyptic number.

It is an amenable number.

124457897 is a deficient number, since it is larger than the sum of its proper divisors (1).

124457897 is an equidigital number, since it uses as much as digits as its factorization.

124457897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 47.

The square root of 124457897 is about 11156.0699621327. The cubic root of 124457897 is about 499.2761485839.

The spelling of 124457897 in words is "one hundred twenty-four million, four hundred fifty-seven thousand, eight hundred ninety-seven".