165003000 has 64 divisors (see below), whose sum is σ = 514818720. Its totient is φ = 44000000.

The previous prime is 165002941. The next prime is 165003019. The reversal of 165003000 is 300561.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24501 + ... + 30500.

Almost surely, 2^165003000 is an apocalyptic number.

165003000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165003000 is an abundant number, since it is smaller than the sum of its proper divisors (349815720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165003000 is a wasteful number, since it uses less digits than its factorization.

165003000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55025 (or 55011 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 165003000 is about 12845.3493529760. The cubic root of 165003000 is about 548.4839793483.

Adding to 165003000 its reverse (300561), we get a palindrome (165303561).

The spelling of 165003000 in words is "one hundred sixty-five million, three thousand".