1516947913 has 8 divisors (see below), whose sum is σ = 1634169600. Its totient is φ = 1399802448.

The previous prime is 1516947907. The next prime is 1516947917. The reversal of 1516947913 is 3197496151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1516947913 - 2²⁵ = 1483393481 is a prime.

It is a super-2 number, since 2×1516947913² = 4602261941510111138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1516947917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26298 + ... + 61036.

It is an arithmetic number, because the mean of its divisors is an integer number (204271200).

Almost surely, 2^1516947913 is an apocalyptic number.

1516947913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1516947913 is a deficient number, since it is larger than the sum of its proper divisors (117221687).

1516947913 is a wasteful number, since it uses less digits than its factorization.

1516947913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38111.

The product of its digits is 204120, while the sum is 46.

The square root of 1516947913 is about 38948.0155206912. The cubic root of 1516947913 is about 1149.0093328465.

The spelling of 1516947913 in words is "one billion, five hundred sixteen million, nine hundred forty-seven thousand, nine hundred thirteen".