124428549 has 32 divisors (see below), whose sum is σ = 200724480. Its totient is φ = 66975552.

The previous prime is 124428533. The next prime is 124428553. The reversal of 124428549 is 945824421.

It is not a de Polignac number, because 124428549 - 2⁴ = 124428533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124428509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77812 + ... + 79394.

It is an arithmetic number, because the mean of its divisors is an integer number (6272640).

Almost surely, 2^124428549 is an apocalyptic number.

124428549 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

124428549 is a deficient number, since it is larger than the sum of its proper divisors (76295931).

124428549 is a wasteful number, since it uses less digits than its factorization.

124428549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809.

The product of its digits is 92160, while the sum is 39.

The square root of 124428549 is about 11154.7545468289. The cubic root of 124428549 is about 499.2369012865.

The spelling of 124428549 in words is "one hundred twenty-four million, four hundred twenty-eight thousand, five hundred forty-nine".