165460423 has 4 divisors (see below), whose sum is σ = 170797888. Its totient is φ = 160122960.

The previous prime is 165460349. The next prime is 165460433. The reversal of 165460423 is 324064561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165460423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 5337433 = 165460423 / (1 + 6 + 5 + 4 + 6 + 0 + 4 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165460433) 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, 2668686 + ... + 2668747.

It is an arithmetic number, because the mean of its divisors is an integer number (42699472).

Almost surely, 2^165460423 is an apocalyptic number.

165460423 is a deficient number, since it is larger than the sum of its proper divisors (5337465).

165460423 is an equidigital number, since it uses as much as digits as its factorization.

165460423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5337464.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 165460423 is about 12863.1420345109. The cubic root of 165460423 is about 548.9903493426.

The spelling of 165460423 in words is "one hundred sixty-five million, four hundred sixty thousand, four hundred twenty-three".