16335145 has 4 divisors (see below), whose sum is σ = 19602180. Its totient is φ = 13068112.

The previous prime is 16335131. The next prime is 16335161. The reversal of 16335145 is 54153361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54153361 = 211 ⋅256651.

It can be written as a sum of positive squares in 2 ways, for example, as 11634921 + 4700224 = 3411^2 + 2168^2 .

It is a cyclic number.

It is not a de Polignac number, because 16335145 - 2⁷ = 16335017 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1633510 + ... + 1633519.

It is an arithmetic number, because the mean of its divisors is an integer number (4900545).

Almost surely, 2^16335145 is an apocalyptic number.

It is an amenable number.

16335145 is a deficient number, since it is larger than the sum of its proper divisors (3267035).

16335145 is an equidigital number, since it uses as much as digits as its factorization.

16335145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3267034.

The product of its digits is 5400, while the sum is 28.

The square root of 16335145 is about 4041.6760137349. The cubic root of 16335145 is about 253.7314675004.

The spelling of 16335145 in words is "sixteen million, three hundred thirty-five thousand, one hundred forty-five".