124738281 has 6 divisors (see below), whose sum is σ = 180177530. Its totient is φ = 83158848.

The previous prime is 124738279. The next prime is 124738283. The reversal of 124738281 is 182837421.

It is an interprime number because it is at equal distance from previous prime (124738279) and next prime (124738283).

It can be written as a sum of positive squares in only one way, i.e., 65755881 + 58982400 = 8109^2 + 7680^2 .

It is not a de Polignac number, because 124738281 - 2¹ = 124738279 is a prime.

It is a super-2 number, since 2×124738281² = 31119277493669922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124738283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6929896 + ... + 6929913.

Almost surely, 2^124738281 is an apocalyptic number.

It is an amenable number.

124738281 is a deficient number, since it is larger than the sum of its proper divisors (55439249).

124738281 is a wasteful number, since it uses less digits than its factorization.

124738281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13859815 (or 13859812 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 124738281 is about 11168.6293250336. The cubic root of 124738281 is about 499.6507975053.

The spelling of 124738281 in words is "one hundred twenty-four million, seven hundred thirty-eight thousand, two hundred eighty-one".