5131232165 has 8 divisors (see below), whose sum is σ = 6165094680. Its totient is φ = 4099908352.

The previous prime is 5131232149. The next prime is 5131232243. The reversal of 5131232165 is 5612321315.

It can be written as a sum of positive squares in 4 ways, for example, as 1183497604 + 3947734561 = 34402^2 + 62831^2 .

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 5131232165 - 2⁴ = 5131232149 is a prime.

It is a super-2 number, since 2×5131232165² = 52659087062261174450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630224 + ... + 638313.

It is an arithmetic number, because the mean of its divisors is an integer number (770636835).

Almost surely, 2^5131232165 is an apocalyptic number.

It is an amenable number.

5131232165 is a deficient number, since it is larger than the sum of its proper divisors (1033862515).

5131232165 is a wasteful number, since it uses less digits than its factorization.

5131232165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269351.

The product of its digits is 5400, while the sum is 29.

The square root of 5131232165 is about 71632.6194202055. The cubic root of 5131232165 is about 1724.8071943016.

The spelling of 5131232165 in words is "five billion, one hundred thirty-one million, two hundred thirty-two thousand, one hundred sixty-five".