124749873 has 12 divisors (see below), whose sum is σ = 180342708. Its totient is φ = 83098080.

The previous prime is 124749841. The next prime is 124749883. The reversal of 124749873 is 378947421.

It can be written as a sum of positive squares in 2 ways, for example, as 49112064 + 75637809 = 7008^2 + 8697^2 .

It is not a de Polignac number, because 124749873 - 2⁵ = 124749841 is a prime.

It is a super-2 number, since 2×124749873² = 31125061627032258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (124749883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7411 + ... + 17447.

It is an arithmetic number, because the mean of its divisors is an integer number (15028559).

Almost surely, 2^124749873 is an apocalyptic number.

It is an amenable number.

124749873 is a deficient number, since it is larger than the sum of its proper divisors (55592835).

124749873 is a wasteful number, since it uses less digits than its factorization.

124749873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11424 (or 11421 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 124749873 is about 11169.1482665421. The cubic root of 124749873 is about 499.6662746377. Note that the first 3 decimals are identical.

The spelling of 124749873 in words is "one hundred twenty-four million, seven hundred forty-nine thousand, eight hundred seventy-three".