5111309 has 4 divisors (see below), whose sum is σ = 5841504. Its totient is φ = 4381116.

The previous prime is 5111303. The next prime is 5111317. The reversal of 5111309 is 9031115.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9031115 = 5 ⋅1806223.

It is a cyclic number.

It is not a de Polignac number, because 5111309 - 2¹² = 5107213 is a prime.

It is a super-2 number, since 2×5111309² = 52250959386962, 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 (5111303) 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, 365087 + ... + 365100.

It is an arithmetic number, because the mean of its divisors is an integer number (1460376).

Almost surely, 2^5111309 is an apocalyptic number.

It is an amenable number.

5111309 is a deficient number, since it is larger than the sum of its proper divisors (730195).

5111309 is an equidigital number, since it uses as much as digits as its factorization.

5111309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730194.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 5111309 is about 2260.8204263055. The cubic root of 5111309 is about 172.2571981379.

The spelling of 5111309 in words is "five million, one hundred eleven thousand, three hundred nine".