165233131 has 8 divisors (see below), whose sum is σ = 194929664. Its totient is φ = 137059560.

The previous prime is 165233119. The next prime is 165233143. The reversal of 165233131 is 131332561.

It is an interprime number because it is at equal distance from previous prime (165233119) and next prime (165233143).

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 165233131 - 2¹¹ = 165231083 is a prime.

It is a super-2 number, since 2×165233131² = 54603975160126322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165233096 and 165233105.

It is not an unprimeable number, because it can be changed into a prime (165233111) 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, 380505 + ... + 380938.

It is an arithmetic number, because the mean of its divisors is an integer number (24366208).

Almost surely, 2^165233131 is an apocalyptic number.

165233131 is a deficient number, since it is larger than the sum of its proper divisors (29696533).

165233131 is an equidigital number, since it uses as much as digits as its factorization.

165233131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761481.

The product of its digits is 1620, while the sum is 25.

The square root of 165233131 is about 12854.3039873810. The cubic root of 165233131 is about 548.7388525538.

Adding to 165233131 its reverse (131332561), we get a palindrome (296565692).

The spelling of 165233131 in words is "one hundred sixty-five million, two hundred thirty-three thousand, one hundred thirty-one".