124029281 has 2 divisors, whose sum is σ = 124029282. Its totient is φ = 124029280.

The previous prime is 124029209. The next prime is 124029293. The reversal of 124029281 is 182920421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121440400 + 2588881 = 11020^2 + 1609^2 .

It is a cyclic number.

It is not a de Polignac number, because 124029281 - 2²² = 119834977 is a prime.

It is a super-2 number, since 2×124029281² = 30766525090753922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (124029181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62014640 + 62014641.

It is an arithmetic number, because the mean of its divisors is an integer number (62014641).

Almost surely, 2^124029281 is an apocalyptic number.

It is an amenable number.

124029281 is a deficient number, since it is larger than the sum of its proper divisors (1).

124029281 is an equidigital number, since it uses as much as digits as its factorization.

124029281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 124029281 is about 11136.8434037657. The cubic root of 124029281 is about 498.7023430866.

The spelling of 124029281 in words is "one hundred twenty-four million, twenty-nine thousand, two hundred eighty-one".