513121105 has 16 divisors (see below), whose sum is σ = 709087104. Its totient is φ = 349165440.

The previous prime is 513121093. The next prime is 513121111. The reversal of 513121105 is 501121315.

It is not a de Polignac number, because 513121105 - 2⁷ = 513120977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51372 + ... + 60541.

It is an arithmetic number, because the mean of its divisors is an integer number (44317944).

Almost surely, 2^513121105 is an apocalyptic number.

It is an amenable number.

513121105 is a deficient number, since it is larger than the sum of its proper divisors (195965999).

513121105 is a wasteful number, since it uses less digits than its factorization.

513121105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112056.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 513121105 is about 22652.1766062337. The cubic root of 513121105 is about 800.5834831849.

The spelling of 513121105 in words is "five hundred thirteen million, one hundred twenty-one thousand, one hundred five".