16535461 has 4 divisors (see below), whose sum is σ = 16576300. Its totient is φ = 16494624.

The previous prime is 16535429. The next prime is 16535471. The reversal of 16535461 is 16453561.

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 14861025 + 1674436 = 3855^2 + 1294^2 .

It is a cyclic number.

It is not a de Polignac number, because 16535461 - 2⁵ = 16535429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16535401) 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, 19806 + ... + 20623.

It is an arithmetic number, because the mean of its divisors is an integer number (4144075).

Almost surely, 2^16535461 is an apocalyptic number.

It is an amenable number.

16535461 is a deficient number, since it is larger than the sum of its proper divisors (40839).

16535461 is an equidigital number, since it uses as much as digits as its factorization.

16535461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40838.

The product of its digits is 10800, while the sum is 31.

The square root of 16535461 is about 4066.3818069630. The cubic root of 16535461 is about 254.7644165367.

The spelling of 16535461 in words is "sixteen million, five hundred thirty-five thousand, four hundred sixty-one".