16273445 has 4 divisors (see below), whose sum is σ = 19528140. Its totient is φ = 13018752.

The previous prime is 16273381. The next prime is 16273463. The reversal of 16273445 is 54437261.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5924356 + 10349089 = 2434^2 + 3217^2 .

It is a cyclic number.

It is not a de Polignac number, because 16273445 - 2⁶ = 16273381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1627340 + ... + 1627349.

It is an arithmetic number, because the mean of its divisors is an integer number (4882035).

Almost surely, 2^16273445 is an apocalyptic number.

It is an amenable number.

16273445 is a deficient number, since it is larger than the sum of its proper divisors (3254695).

16273445 is an equidigital number, since it uses as much as digits as its factorization.

16273445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3254694.

The product of its digits is 20160, while the sum is 32.

The square root of 16273445 is about 4034.0358203665. The cubic root of 16273445 is about 253.4116053538.

The spelling of 16273445 in words is "sixteen million, two hundred seventy-three thousand, four hundred forty-five".