5109749 has 4 divisors (see below), whose sum is σ = 5331936. Its totient is φ = 4887564.

The previous prime is 5109739. The next prime is 5109751. The reversal of 5109749 is 9479015.

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 a de Polignac number, because none of the positive numbers 2^k-5109749 is a prime.

It is a super-2 number, since 2×5109749² = 52219069686002, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5109719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111059 + ... + 111104.

It is an arithmetic number, because the mean of its divisors is an integer number (1332984).

Almost surely, 2^5109749 is an apocalyptic number.

It is an amenable number.

5109749 is a deficient number, since it is larger than the sum of its proper divisors (222187).

5109749 is a wasteful number, since it uses less digits than its factorization.

5109749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222186.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 5109749 is about 2260.4753924783. The cubic root of 5109749 is about 172.2396717356.

The spelling of 5109749 in words is "five million, one hundred nine thousand, seven hundred forty-nine".