165247001 has 8 divisors (see below), whose sum is σ = 167362944. Its totient is φ = 163144800.

The previous prime is 165246997. The next prime is 165247007. The reversal of 165247001 is 100742561.

165247001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 165247001 - 2² = 165246997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165247007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21941 + ... + 28493.

It is an arithmetic number, because the mean of its divisors is an integer number (20920368).

Almost surely, 2^165247001 is an apocalyptic number.

It is an amenable number.

165247001 is a deficient number, since it is larger than the sum of its proper divisors (2115943).

165247001 is a wasteful number, since it uses less digits than its factorization.

165247001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6871.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 165247001 is about 12854.8434840725. The cubic root of 165247001 is about 548.7542062037.

Adding to 165247001 its reverse (100742561), we get a palindrome (265989562).

The spelling of 165247001 in words is "one hundred sixty-five million, two hundred forty-seven thousand, one".