124729172 has 6 divisors (see below), whose sum is σ = 218276058. Its totient is φ = 62364584.

The previous prime is 124729133. The next prime is 124729219. The reversal of 124729172 is 271927421.

It can be written as a sum of positive squares in only one way, i.e., 120209296 + 4519876 = 10964^2 + 2126^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 15591143 + ... + 15591150.

It is an arithmetic number, because the mean of its divisors is an integer number (36379343).

Almost surely, 2^124729172 is an apocalyptic number.

It is an amenable number.

124729172 is a deficient number, since it is larger than the sum of its proper divisors (93546886).

124729172 is a wasteful number, since it uses less digits than its factorization.

124729172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31182297 (or 31182295 counting only the distinct ones).

The product of its digits is 14112, while the sum is 35.

The square root of 124729172 is about 11168.2215235909. The cubic root of 124729172 is about 499.6386348934.

The spelling of 124729172 in words is "one hundred twenty-four million, seven hundred twenty-nine thousand, one hundred seventy-two".