124783457 has 2 divisors, whose sum is σ = 124783458. Its totient is φ = 124783456.

The previous prime is 124783427. The next prime is 124783471. The reversal of 124783457 is 754387421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67387681 + 57395776 = 8209^2 + 7576^2 .

It is an emirp because it is prime and its reverse (754387421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124783457 - 2¹⁰ = 124782433 is a prime.

It is a super-2 number, since 2×124783457² = 31141822281741698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (124783427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62391728 + 62391729.

It is an arithmetic number, because the mean of its divisors is an integer number (62391729).

Almost surely, 2^124783457 is an apocalyptic number.

It is an amenable number.

124783457 is a deficient number, since it is larger than the sum of its proper divisors (1).

124783457 is an equidigital number, since it uses as much as digits as its factorization.

124783457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 41.

The square root of 124783457 is about 11170.6515924542. The cubic root of 124783457 is about 499.7111091163.

The spelling of 124783457 in words is "one hundred twenty-four million, seven hundred eighty-three thousand, four hundred fifty-seven".