5155731 has 36 divisors (see below), whose sum is σ = 9004632. Its totient is φ = 2939328.

The previous prime is 5155729. The next prime is 5155753. The reversal of 5155731 is 1375515.

It is not a de Polignac number, because 5155731 - 2¹ = 5155729 is a prime.

It is a super-2 number, since 2×5155731² = 53163124288722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 5155695 and 5155704.

It is not an unprimeable number, because it can be changed into a prime (5156731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11691 + ... + 12123.

Almost surely, 2^5155731 is an apocalyptic number.

5155731 is a deficient number, since it is larger than the sum of its proper divisors (3848901).

5155731 is an equidigital number, since it uses as much as digits as its factorization.

5155731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 443 counting only the distinct ones).

The product of its digits is 2625, while the sum is 27.

The square root of 5155731 is about 2270.6234826585. The cubic root of 5155731 is about 172.7547841765.

It can be divided in two parts, 5155 and 731, that added together give a triangular number (5886 = T₁₀₈).

The spelling of 5155731 in words is "five million, one hundred fifty-five thousand, seven hundred thirty-one".