5156749 has 8 divisors (see below), whose sum is σ = 5617080. Its totient is φ = 4705536.

The previous prime is 5156747. The next prime is 5156773. The reversal of 5156749 is 9476515.

It can be written as a sum of positive squares in 4 ways, for example, as 94249 + 5062500 = 307^2 + 2250^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5156749 - 2¹ = 5156747 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5156743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1072 + ... + 3385.

It is an arithmetic number, because the mean of its divisors is an integer number (702135).

Almost surely, 2^5156749 is an apocalyptic number.

It is an amenable number.

5156749 is a deficient number, since it is larger than the sum of its proper divisors (460331).

5156749 is a wasteful number, since it uses less digits than its factorization.

5156749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4559.

The product of its digits is 37800, while the sum is 37.

The square root of 5156749 is about 2270.8476390987. The cubic root of 5156749 is about 172.7661535825.

The spelling of 5156749 in words is "five million, one hundred fifty-six thousand, seven hundred forty-nine".