165100007 has 4 divisors (see below), whose sum is σ = 165590256. Its totient is φ = 164609760.

The previous prime is 165099983. The next prime is 165100009. The reversal of 165100007 is 700001561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 700001561 = 7 ⋅100000223.

It is a cyclic number.

It is not a de Polignac number, because 165100007 - 2⁶ = 165099943 is a prime.

It is a super-2 number, since 2×165100007² = 54516024622800098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165100009) 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, 244619 + ... + 245292.

It is an arithmetic number, because the mean of its divisors is an integer number (41397564).

Almost surely, 2^165100007 is an apocalyptic number.

165100007 is a deficient number, since it is larger than the sum of its proper divisors (490249).

165100007 is an equidigital number, since it uses as much as digits as its factorization.

165100007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490248.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 165100007 is about 12849.1247561848. The cubic root of 165100007 is about 548.5914447921.

Adding to 165100007 its reverse (700001561), we get a palindrome (865101568).

The spelling of 165100007 in words is "one hundred sixty-five million, one hundred thousand, seven".