5135815 has 4 divisors (see below), whose sum is σ = 6162984. Its totient is φ = 4108648.

The previous prime is 5135807. The next prime is 5135839. The reversal of 5135815 is 5185315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5135815 - 2³ = 5135807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513577 + ... + 513586.

It is an arithmetic number, because the mean of its divisors is an integer number (1540746).

Almost surely, 2^5135815 is an apocalyptic number.

5135815 is a deficient number, since it is larger than the sum of its proper divisors (1027169).

5135815 is a wasteful number, since it uses less digits than its factorization.

5135815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027168.

The product of its digits is 3000, while the sum is 28.

The square root of 5135815 is about 2266.2336596212. The cubic root of 5135815 is about 172.5320531349.

It can be divided in two parts, 513 and 5815, that added together give a triangular number (6328 = T₁₁₂).

The spelling of 5135815 in words is "five million, one hundred thirty-five thousand, eight hundred fifteen".