919316513 has 4 divisors (see below), whose sum is σ = 920434368. Its totient is φ = 918198660.

The previous prime is 919316491. The next prime is 919316527. The reversal of 919316513 is 315613919.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 919316513 - 2²² = 915122209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (919316413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557693 + ... + 559338.

It is an arithmetic number, because the mean of its divisors is an integer number (230108592).

Almost surely, 2^919316513 is an apocalyptic number.

It is an amenable number.

919316513 is a deficient number, since it is larger than the sum of its proper divisors (1117855).

919316513 is a wasteful number, since it uses less digits than its factorization.

919316513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117854.

The product of its digits is 21870, while the sum is 38.

The square root of 919316513 is about 30320.2327332756. The cubic root of 919316513 is about 972.3479144412.

The spelling of 919316513 in words is "nine hundred nineteen million, three hundred sixteen thousand, five hundred thirteen".