16497541 has 4 divisors (see below), whose sum is σ = 16539084. Its totient is φ = 16456000.

The previous prime is 16497527. The next prime is 16497553. The reversal of 16497541 is 14579461.

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 13905441 + 2592100 = 3729^2 + 1610^2 .

It is a cyclic number.

It is not a de Polignac number, because 16497541 - 2⁷ = 16497413 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 16497541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16497241) 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, 20170 + ... + 20971.

It is an arithmetic number, because the mean of its divisors is an integer number (4134771).

Almost surely, 2^16497541 is an apocalyptic number.

It is an amenable number.

16497541 is a deficient number, since it is larger than the sum of its proper divisors (41543).

16497541 is an equidigital number, since it uses as much as digits as its factorization.

16497541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41542.

The product of its digits is 30240, while the sum is 37.

The square root of 16497541 is about 4061.7165090636. The cubic root of 16497541 is about 254.5695210354.

The spelling of 16497541 in words is "sixteen million, four hundred ninety-seven thousand, five hundred forty-one".