5311749 has 4 divisors (see below), whose sum is σ = 7082336. Its totient is φ = 3541164.

The previous prime is 5311739. The next prime is 5311759. The reversal of 5311749 is 9471135.

5311749 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (5311739) and next prime (5311759).

It is not a de Polignac number, because 5311749 - 2⁹ = 5311237 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

5311749 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5311739) 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, 885289 + ... + 885294.

It is an arithmetic number, because the mean of its divisors is an integer number (1770584).

Almost surely, 2^5311749 is an apocalyptic number.

It is an amenable number.

5311749 is a deficient number, since it is larger than the sum of its proper divisors (1770587).

5311749 is a wasteful number, since it uses less digits than its factorization.

5311749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770586.

The product of its digits is 3780, while the sum is 30.

The square root of 5311749 is about 2304.7231937914. The cubic root of 5311749 is about 174.4800786228.

The spelling of 5311749 in words is "five million, three hundred eleven thousand, seven hundred forty-nine".