32291249 has 2 divisors, whose sum is σ = 32291250. Its totient is φ = 32291248.

The previous prime is 32291227. The next prime is 32291251. The reversal of 32291249 is 94219223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17698849 + 14592400 = 4207^2 + 3820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32291249 is a prime.

It is a Sophie Germain prime.

Together with 32291251, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (32291299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16145624 + 16145625.

It is an arithmetic number, because the mean of its divisors is an integer number (16145625).

Almost surely, 2^32291249 is an apocalyptic number.

It is an amenable number.

32291249 is a deficient number, since it is larger than the sum of its proper divisors (1).

32291249 is an equidigital number, since it uses as much as digits as its factorization.

32291249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 32.

The square root of 32291249 is about 5682.5389571916. The cubic root of 32291249 is about 318.4404882784.

The spelling of 32291249 in words is "thirty-two million, two hundred ninety-one thousand, two hundred forty-nine".