1381112724 has 24 divisors (see below), whose sum is σ = 3223741248. Its totient is φ = 460207360.

The previous prime is 1381112699. The next prime is 1381112729. The reversal of 1381112724 is 4272111831.

It is a junction number, because it is equal to n+sod(n) for n = 1381112691 and 1381112700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381112729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17569 + ... + 55415.

It is an arithmetic number, because the mean of its divisors is an integer number (134322552).

Almost surely, 2^1381112724 is an apocalyptic number.

It is an amenable number.

1381112724 is an abundant number, since it is smaller than the sum of its proper divisors (1842628524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1381112724 is a wasteful number, since it uses less digits than its factorization.

1381112724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40895 (or 40893 counting only the distinct ones).

The product of its digits is 2688, while the sum is 30.

The square root of 1381112724 is about 37163.3249857975. The cubic root of 1381112724 is about 1113.6354368791.

The spelling of 1381112724 in words is "one billion, three hundred eighty-one million, one hundred twelve thousand, seven hundred twenty-four".