511113 has 4 divisors (see below), whose sum is σ = 681488. Its totient is φ = 340740.

The previous prime is 511111. The next prime is 511123. The reversal of 511113 is 311115.

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 511113 - 2¹ = 511111 is a prime.

It is a super-2 number, since 2×511113² = 522472997538, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (511111) 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, 85183 + ... + 85188.

It is an arithmetic number, because the mean of its divisors is an integer number (170372).

2⁵¹¹¹¹³ is an apocalyptic number.

It is an amenable number.

511113 is a deficient number, since it is larger than the sum of its proper divisors (170375).

511113 is a wasteful number, since it uses less digits than its factorization.

511113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170374.

The product of its digits is 15, while the sum is 12.

The square root of 511113 is about 714.9216740315. The cubic root of 511113 is about 79.9537753795.

Adding to 511113 its reverse (311115), we get a palindrome (822228).

The spelling of 511113 in words is "five hundred eleven thousand, one hundred thirteen".