1513745444 has 12 divisors (see below), whose sum is σ = 2650368000. Its totient is φ = 756497448.

The previous prime is 1513745381. The next prime is 1513745473. The reversal of 1513745444 is 4445473151.

It is a junction number, because it is equal to n+sod(n) for n = 1513745398 and 1513745407.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84644 + ... + 100955.

It is an arithmetic number, because the mean of its divisors is an integer number (220864000).

Almost surely, 2^1513745444 is an apocalyptic number.

It is an amenable number.

1513745444 is a deficient number, since it is larger than the sum of its proper divisors (1136622556).

1513745444 is a wasteful number, since it uses less digits than its factorization.

1513745444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187642 (or 187640 counting only the distinct ones).

The product of its digits is 134400, while the sum is 38.

The square root of 1513745444 is about 38906.8817049118. The cubic root of 1513745444 is about 1148.2001951490.

The spelling of 1513745444 in words is "one billion, five hundred thirteen million, seven hundred forty-five thousand, four hundred forty-four".