16543045 has 4 divisors (see below), whose sum is σ = 19851660. Its totient is φ = 13234432.

The previous prime is 16543027. The next prime is 16543063. The reversal of 16543045 is 54034561.

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

It is an interprime number because it is at equal distance from previous prime (16543027) and next prime (16543063).

It can be written as a sum of positive squares in 2 ways, for example, as 7579009 + 8964036 = 2753^2 + 2994^2 .

It is a cyclic number.

It is not a de Polignac number, because 16543045 - 2¹³ = 16534853 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, 1654300 + ... + 1654309.

It is an arithmetic number, because the mean of its divisors is an integer number (4962915).

Almost surely, 2^16543045 is an apocalyptic number.

It is an amenable number.

16543045 is a deficient number, since it is larger than the sum of its proper divisors (3308615).

16543045 is an equidigital number, since it uses as much as digits as its factorization.

16543045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3308614.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 16543045 is about 4067.3142243992. The cubic root of 16543045 is about 254.8033598723.

The spelling of 16543045 in words is "sixteen million, five hundred forty-three thousand, forty-five".