165142003 has 8 divisors (see below), whose sum is σ = 180860400. Its totient is φ = 149854368.

The previous prime is 165141971. The next prime is 165142007. The reversal of 165142003 is 300241561.

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 165142003 - 2⁵ = 165141971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165142007) 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, 106888 + ... + 108421.

It is an arithmetic number, because the mean of its divisors is an integer number (22607550).

Almost surely, 2^165142003 is an apocalyptic number.

165142003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

165142003 is a deficient number, since it is larger than the sum of its proper divisors (15718397).

165142003 is a wasteful number, since it uses less digits than its factorization.

165142003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215381.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 165142003 is about 12850.7588491886. The cubic root of 165142003 is about 548.6379553759.

Adding to 165142003 its reverse (300241561), we get a palindrome (465383564).

The spelling of 165142003 in words is "one hundred sixty-five million, one hundred forty-two thousand, three".