124391144 has 8 divisors (see below), whose sum is σ = 233233410. Its totient is φ = 62195568.

The previous prime is 124391129. The next prime is 124391147. The reversal of 124391144 is 441193421.

It can be written as a sum of positive squares in only one way, i.e., 124322500 + 68644 = 11150^2 + 262^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (124391147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7774439 + ... + 7774454.

Almost surely, 2^124391144 is an apocalyptic number.

It is an amenable number.

124391144 is a deficient number, since it is larger than the sum of its proper divisors (108842266).

124391144 is a wasteful number, since it uses less digits than its factorization.

124391144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15548899 (or 15548895 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 124391144 is about 11153.0777814915. The cubic root of 124391144 is about 499.1868703572.

The spelling of 124391144 in words is "one hundred twenty-four million, three hundred ninety-one thousand, one hundred forty-four".