16413545 has 4 divisors (see below), whose sum is σ = 19696260. Its totient is φ = 13130832.

The previous prime is 16413541. The next prime is 16413563. The reversal of 16413545 is 54531461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54531461 = 17 ⋅3207733.

It can be written as a sum of positive squares in 2 ways, for example, as 8690704 + 7722841 = 2948^2 + 2779^2 .

It is a cyclic number.

It is not a de Polignac number, because 16413545 - 2² = 16413541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16413541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1641350 + ... + 1641359.

It is an arithmetic number, because the mean of its divisors is an integer number (4924065).

Almost surely, 2^16413545 is an apocalyptic number.

It is an amenable number.

16413545 is a deficient number, since it is larger than the sum of its proper divisors (3282715).

16413545 is an equidigital number, since it uses as much as digits as its factorization.

16413545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282714.

The product of its digits is 7200, while the sum is 29.

The square root of 16413545 is about 4051.3633507747. The cubic root of 16413545 is about 254.1367451414.

The spelling of 16413545 in words is "sixteen million, four hundred thirteen thousand, five hundred forty-five".