5157813 has 4 divisors (see below), whose sum is σ = 6877088. Its totient is φ = 3438540.

The previous prime is 5157793. The next prime is 5157821. The reversal of 5157813 is 3187515.

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 5157813 - 2⁸ = 5157557 is a prime.

It is a D-number.

It is a Duffinian number.

5157813 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5157883) 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, 859633 + ... + 859638.

It is an arithmetic number, because the mean of its divisors is an integer number (1719272).

Almost surely, 2^5157813 is an apocalyptic number.

It is an amenable number.

5157813 is a deficient number, since it is larger than the sum of its proper divisors (1719275).

5157813 is a wasteful number, since it uses less digits than its factorization.

5157813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719274.

The product of its digits is 4200, while the sum is 30.

The square root of 5157813 is about 2271.0819007689. The cubic root of 5157813 is about 172.7780351347.

The spelling of 5157813 in words is "five million, one hundred fifty-seven thousand, eight hundred thirteen".