165126473 has 4 divisors (see below), whose sum is σ = 173817360. Its totient is φ = 156435588.

The previous prime is 165126469. The next prime is 165126497. The reversal of 165126473 is 374621561.

165126473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 165126473 - 2² = 165126469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165126413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4345415 + ... + 4345452.

It is an arithmetic number, because the mean of its divisors is an integer number (43454340).

Almost surely, 2^165126473 is an apocalyptic number.

It is an amenable number.

165126473 is a deficient number, since it is larger than the sum of its proper divisors (8690887).

165126473 is an equidigital number, since it uses as much as digits as its factorization.

165126473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8690886.

The product of its digits is 30240, while the sum is 35.

The square root of 165126473 is about 12850.1545905098. The cubic root of 165126473 is about 548.6207568147.

The spelling of 165126473 in words is "one hundred sixty-five million, one hundred twenty-six thousand, four hundred seventy-three".