513942383 has 4 divisors (see below), whose sum is σ = 536287728. Its totient is φ = 491597040.

The previous prime is 513942367. The next prime is 513942413. The reversal of 513942383 is 383249315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 383249315 = 5 ⋅76649863.

It is a cyclic number.

It is not a de Polignac number, because 513942383 - 2⁴ = 513942367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513942323) 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, 11172638 + ... + 11172683.

It is an arithmetic number, because the mean of its divisors is an integer number (134071932).

Almost surely, 2^513942383 is an apocalyptic number.

513942383 is a deficient number, since it is larger than the sum of its proper divisors (22345345).

513942383 is a wasteful number, since it uses less digits than its factorization.

513942383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22345344.

The product of its digits is 77760, while the sum is 38.

The square root of 513942383 is about 22670.2973734356. The cubic root of 513942383 is about 801.0103811876.

The spelling of 513942383 in words is "five hundred thirteen million, nine hundred forty-two thousand, three hundred eighty-three".