5135861 has 4 divisors (see below), whose sum is σ = 5148000. Its totient is φ = 5123724.

The previous prime is 5135839. The next prime is 5135873. The reversal of 5135861 is 1685315.

5135861 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

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 a cyclic number.

It is not a de Polignac number, because 5135861 - 2²² = 941557 is a prime.

It is a super-2 number, since 2×5135861² = 52754136422642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5135161) 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, 5411 + ... + 6288.

It is an arithmetic number, because the mean of its divisors is an integer number (1287000).

Almost surely, 2^5135861 is an apocalyptic number.

It is an amenable number.

5135861 is a deficient number, since it is larger than the sum of its proper divisors (12139).

5135861 is a wasteful number, since it uses less digits than its factorization.

5135861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12138.

The product of its digits is 3600, while the sum is 29.

The square root of 5135861 is about 2266.2438085961. The cubic root of 5135861 is about 172.5325682398.

The spelling of 5135861 in words is "five million, one hundred thirty-five thousand, eight hundred sixty-one".