165413474 has 8 divisors (see below), whose sum is σ = 251519340. Its totient is φ = 81573696.

The previous prime is 165413471. The next prime is 165413491. The reversal of 165413474 is 474314561.

It can be written as a sum of positive squares in 2 ways, for example, as 158936449 + 6477025 = 12607^2 + 2545^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (165413471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566339 + ... + 566630.

Almost surely, 2^165413474 is an apocalyptic number.

165413474 is a deficient number, since it is larger than the sum of its proper divisors (86105866).

165413474 is a wasteful number, since it uses less digits than its factorization.

165413474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133044.

The product of its digits is 40320, while the sum is 35.

The square root of 165413474 is about 12861.3169621155. The cubic root of 165413474 is about 548.9384195303.

The spelling of 165413474 in words is "one hundred sixty-five million, four hundred thirteen thousand, four hundred seventy-four".