165130601 has 4 divisors (see below), whose sum is σ = 165194832. Its totient is φ = 165066372.

The previous prime is 165130561. The next prime is 165130649. The reversal of 165130601 is 106031561.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 106031561 = 137 ⋅773953.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165130601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165130681) 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, 28091 + ... + 33456.

It is an arithmetic number, because the mean of its divisors is an integer number (41298708).

Almost surely, 2^165130601 is an apocalyptic number.

It is an amenable number.

165130601 is a deficient number, since it is larger than the sum of its proper divisors (64231).

165130601 is an equidigital number, since it uses as much as digits as its factorization.

165130601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64230.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 165130601 is about 12850.3152101417. The cubic root of 165130601 is about 548.6253284370.

The spelling of 165130601 in words is "one hundred sixty-five million, one hundred thirty thousand, six hundred one".