32199481 has 2 divisors, whose sum is σ = 32199482. Its totient is φ = 32199480.

The previous prime is 32199469. The next prime is 32199491. The reversal of 32199481 is 18499123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20748025 + 11451456 = 4555^2 + 3384^2 .

It is a cyclic number.

It is not a de Polignac number, because 32199481 - 2⁵ = 32199449 is a prime.

It is a super-2 number, since 2×32199481² = 2073613153338722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 32199481.

It is not a weakly prime, because it can be changed into another prime (32199491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16099740 + 16099741.

It is an arithmetic number, because the mean of its divisors is an integer number (16099741).

Almost surely, 2^32199481 is an apocalyptic number.

It is an amenable number.

32199481 is a deficient number, since it is larger than the sum of its proper divisors (1).

32199481 is an equidigital number, since it uses as much as digits as its factorization.

32199481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 37.

The square root of 32199481 is about 5674.4586525941. The cubic root of 32199481 is about 318.1385450390.

The spelling of 32199481 in words is "thirty-two million, one hundred ninety-nine thousand, four hundred eighty-one".