513604101 has 4 divisors (see below), whose sum is σ = 684805472. Its totient is φ = 342402732.

The previous prime is 513604093. The next prime is 513604103. The reversal of 513604101 is 101406315.

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 not a de Polignac number, because 513604101 - 2³ = 513604093 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 (513604103) 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, 85600681 + ... + 85600686.

It is an arithmetic number, because the mean of its divisors is an integer number (171201368).

Almost surely, 2^513604101 is an apocalyptic number.

It is an amenable number.

513604101 is a deficient number, since it is larger than the sum of its proper divisors (171201371).

513604101 is a wasteful number, since it uses less digits than its factorization.

513604101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171201370.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 513604101 is about 22662.8352374543. The cubic root of 513604101 is about 800.8345982752.

The spelling of 513604101 in words is "five hundred thirteen million, six hundred four thousand, one hundred one".