124271249 has 4 divisors (see below), whose sum is σ = 124804836. Its totient is φ = 123737664.

The previous prime is 124271239. The next prime is 124271261. The reversal of 124271249 is 942172421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 942172421 = 271 ⋅3476651.

It can be written as a sum of positive squares in 2 ways, for example, as 20638849 + 103632400 = 4543^2 + 10180^2 .

It is a cyclic number.

It is not a de Polignac number, because 124271249 - 2⁴ = 124271233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124271209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266444 + ... + 266909.

It is an arithmetic number, because the mean of its divisors is an integer number (31201209).

Almost surely, 2^124271249 is an apocalyptic number.

It is an amenable number.

124271249 is a deficient number, since it is larger than the sum of its proper divisors (533587).

124271249 is an equidigital number, since it uses as much as digits as its factorization.

124271249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533586.

The product of its digits is 8064, while the sum is 32.

The square root of 124271249 is about 11147.7015119710. The cubic root of 124271249 is about 499.0264375828.

The spelling of 124271249 in words is "one hundred twenty-four million, two hundred seventy-one thousand, two hundred forty-nine".