16535749 has 2 divisors, whose sum is σ = 16535750. Its totient is φ = 16535748.

The previous prime is 16535731. The next prime is 16535759. The reversal of 16535749 is 94753561.

16535749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16240900 + 294849 = 4030^2 + 543^2 .

It is a cyclic number.

It is not a de Polignac number, because 16535749 - 2⁷ = 16535621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16535759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8267874 + 8267875.

It is an arithmetic number, because the mean of its divisors is an integer number (8267875).

Almost surely, 2^16535749 is an apocalyptic number.

It is an amenable number.

16535749 is a deficient number, since it is larger than the sum of its proper divisors (1).

16535749 is an equidigital number, since it uses as much as digits as its factorization.

16535749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 40.

The square root of 16535749 is about 4066.4172191255. The cubic root of 16535749 is about 254.7658956151.

The spelling of 16535749 in words is "sixteen million, five hundred thirty-five thousand, seven hundred forty-nine".