513790019 has 4 divisors (see below), whose sum is σ = 514914744. Its totient is φ = 512665296.

The previous prime is 513789977. The next prime is 513790021. The reversal of 513790019 is 910097315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 910097315 = 5 ⋅182019463.

It is a cyclic number.

It is not a de Polignac number, because 513790019 - 2²⁰ = 512741443 is a prime.

It is a super-2 number, since 2×513790019² = 527960367248040722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513790219) 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, 561677 + ... + 562590.

It is an arithmetic number, because the mean of its divisors is an integer number (128728686).

Almost surely, 2^513790019 is an apocalyptic number.

513790019 is a deficient number, since it is larger than the sum of its proper divisors (1124725).

513790019 is a wasteful number, since it uses less digits than its factorization.

513790019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124724.

The product of its (nonzero) digits is 8505, while the sum is 35.

The square root of 513790019 is about 22666.9366920191. The cubic root of 513790019 is about 800.9312171851.

The spelling of 513790019 in words is "five hundred thirteen million, seven hundred ninety thousand, nineteen".