32749081 has 2 divisors, whose sum is σ = 32749082. Its totient is φ = 32749080.

The previous prime is 32749007. The next prime is 32749097. The reversal of 32749081 is 18094723.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32490000 + 259081 = 5700^2 + 509^2 .

It is an emirp because it is prime and its reverse (18094723) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32749081 - 2¹⁷ = 32618009 is a prime.

It is a super-2 number, since 2×32749081² = 2145004612689122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (32749001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16374540 + 16374541.

It is an arithmetic number, because the mean of its divisors is an integer number (16374541).

Almost surely, 2^32749081 is an apocalyptic number.

It is an amenable number.

32749081 is a deficient number, since it is larger than the sum of its proper divisors (1).

32749081 is an equidigital number, since it uses as much as digits as its factorization.

32749081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 32749081 is about 5722.6812771637. The cubic root of 32749081 is about 319.9384028574.

The spelling of 32749081 in words is "thirty-two million, seven hundred forty-nine thousand, eighty-one".