124667281 has 2 divisors, whose sum is σ = 124667282. Its totient is φ = 124667280.

The previous prime is 124667269. The next prime is 124667287. The reversal of 124667281 is 182766421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108993600 + 15673681 = 10440^2 + 3959^2 .

It is a cyclic number.

It is not a de Polignac number, because 124667281 - 2²⁵ = 91112849 is a prime.

It is a super-2 number, since 2×124667281² = 31083861903865922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 124667281.

It is not a weakly prime, because it can be changed into another prime (124667287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62333640 + 62333641.

It is an arithmetic number, because the mean of its divisors is an integer number (62333641).

Almost surely, 2^124667281 is an apocalyptic number.

It is an amenable number.

124667281 is a deficient number, since it is larger than the sum of its proper divisors (1).

124667281 is an equidigital number, since it uses as much as digits as its factorization.

124667281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 37.

The square root of 124667281 is about 11165.4503267893. The cubic root of 124667281 is about 499.5559804767. Note that the first 3 decimals are identical.

The spelling of 124667281 in words is "one hundred twenty-four million, six hundred sixty-seven thousand, two hundred eighty-one".