165104497 has 4 divisors (see below), whose sum is σ = 166156276. Its totient is φ = 164052720.

The previous prime is 165104483. The next prime is 165104501. The reversal of 165104497 is 794401561.

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

It can be written as a sum of positive squares in 2 ways, for example, as 52765696 + 112338801 = 7264^2 + 10599^2 .

It is a cyclic number.

It is not a de Polignac number, because 165104497 - 2¹⁵ = 165071729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165204497) 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, 525654 + ... + 525967.

It is an arithmetic number, because the mean of its divisors is an integer number (41539069).

Almost surely, 2^165104497 is an apocalyptic number.

It is an amenable number.

165104497 is a deficient number, since it is larger than the sum of its proper divisors (1051779).

165104497 is a wasteful number, since it uses less digits than its factorization.

165104497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051778.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 165104497 is about 12849.2994750687. The cubic root of 165104497 is about 548.5964178451.

The spelling of 165104497 in words is "one hundred sixty-five million, one hundred four thousand, four hundred ninety-seven".