124724225 has 12 divisors (see below), whose sum is σ = 158839164. Its totient is φ = 97081920.

The previous prime is 124724221. The next prime is 124724261. The reversal of 124724225 is 522427421.

It is a Cunningham number, because it is equal to 11168²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 1 + 124724224 = 1^2 + 11168^2 .

It is not a de Polignac number, because 124724225 - 2² = 124724221 is a prime.

It is a super-2 number, since 2×124724225² = 31112264603701250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124724221) 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, 66494 + ... + 68343.

It is an arithmetic number, because the mean of its divisors is an integer number (13236597).

Almost surely, 2^124724225 is an apocalyptic number.

It is an amenable number.

124724225 is a deficient number, since it is larger than the sum of its proper divisors (34114939).

124724225 is a wasteful number, since it uses less digits than its factorization.

124724225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134884 (or 134879 counting only the distinct ones).

The product of its digits is 8960, while the sum is 29.

The square root of 124724225 is about 11168.0000447708. Note that the first 4 decimals coincide. The cubic root of 124724225 is about 499.6320292615.

The spelling of 124724225 in words is "one hundred twenty-four million, seven hundred twenty-four thousand, two hundred twenty-five".