165000451 has 16 divisors (see below), whose sum is σ = 206097408. Its totient is φ = 128332800.

The previous prime is 165000439. The next prime is 165000457. The reversal of 165000451 is 154000561.

165000451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 165000451 - 2¹¹ = 164998403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165000457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47686 + ... + 51028.

It is an arithmetic number, because the mean of its divisors is an integer number (12881088).

Almost surely, 2^165000451 is an apocalyptic number.

165000451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

165000451 is a deficient number, since it is larger than the sum of its proper divisors (41096957).

165000451 is a wasteful number, since it uses less digits than its factorization.

165000451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4002.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 165000451 is about 12845.2501338043. The cubic root of 165000451 is about 548.4811549696.

The spelling of 165000451 in words is "one hundred sixty-five million, four hundred fifty-one", and thus it is an aban number.