1513745445 has 32 divisors (see below), whose sum is σ = 2449157760. Its totient is φ = 798324480.

The previous prime is 1513745381. The next prime is 1513745473. The reversal of 1513745445 is 5445473151.

It is not a de Polignac number, because 1513745445 - 2⁶ = 1513745381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 576235 + ... + 578855.

It is an arithmetic number, because the mean of its divisors is an integer number (76536180).

Almost surely, 2^1513745445 is an apocalyptic number.

1513745445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1513745445 is a deficient number, since it is larger than the sum of its proper divisors (935412315).

1513745445 is a wasteful number, since it uses less digits than its factorization.

1513745445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3045.

The product of its digits is 168000, while the sum is 39.

The square root of 1513745445 is about 38906.8817177630. The cubic root of 1513745445 is about 1148.2001954019.

The spelling of 1513745445 in words is "one billion, five hundred thirteen million, seven hundred forty-five thousand, four hundred forty-five".