124828531 has 4 divisors (see below), whose sum is σ = 124985952. Its totient is φ = 124671112.

The previous prime is 124828523. The next prime is 124828541. The reversal of 124828531 is 135828421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 124828531 - 2³ = 124828523 is a prime.

It is a super-2 number, since 2×124828531² = 31164324303235922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124828511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77515 + ... + 79108.

It is an arithmetic number, because the mean of its divisors is an integer number (31246488).

Almost surely, 2^124828531 is an apocalyptic number.

124828531 is a deficient number, since it is larger than the sum of its proper divisors (157421).

124828531 is an equidigital number, since it uses as much as digits as its factorization.

124828531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157420.

The product of its digits is 15360, while the sum is 34.

The square root of 124828531 is about 11172.6689291324. The cubic root of 124828531 is about 499.7712700478.

The spelling of 124828531 in words is "one hundred twenty-four million, eight hundred twenty-eight thousand, five hundred thirty-one".