1513768641 has 16 divisors (see below), whose sum is σ = 2516395008. Its totient is φ = 786373200.

The previous prime is 1513768639. The next prime is 1513768681. The reversal of 1513768641 is 1468673151.

It is not a de Polignac number, because 1513768641 - 2¹ = 1513768639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1513768593 and 1513768602.

It is not an unprimeable number, because it can be changed into a prime (1513768601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3276325 + ... + 3276786.

It is an arithmetic number, because the mean of its divisors is an integer number (157274688).

Almost surely, 2^1513768641 is an apocalyptic number.

1513768641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1513768641 is a deficient number, since it is larger than the sum of its proper divisors (1002626367).

1513768641 is a wasteful number, since it uses less digits than its factorization.

1513768641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6553132.

The product of its digits is 120960, while the sum is 42.

The square root of 1513768641 is about 38907.1798129857. The cubic root of 1513768641 is about 1148.2060602179.

The spelling of 1513768641 in words is "one billion, five hundred thirteen million, seven hundred sixty-eight thousand, six hundred forty-one".