32149913 has 2 divisors, whose sum is σ = 32149914. Its totient is φ = 32149912.

The previous prime is 32149891. The next prime is 32149921. The reversal of 32149913 is 31994123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29300569 + 2849344 = 5413^2 + 1688^2 .

It is a cyclic number.

It is not a de Polignac number, because 32149913 - 2⁸ = 32149657 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 32149913.

It is not a weakly prime, because it can be changed into another prime (32149933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16074956 + 16074957.

It is an arithmetic number, because the mean of its divisors is an integer number (16074957).

Almost surely, 2^32149913 is an apocalyptic number.

It is an amenable number.

32149913 is a deficient number, since it is larger than the sum of its proper divisors (1).

32149913 is an equidigital number, since it uses as much as digits as its factorization.

32149913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 32.

The square root of 32149913 is about 5670.0893291023. The cubic root of 32149913 is about 317.9752133153.

The spelling of 32149913 in words is "thirty-two million, one hundred forty-nine thousand, nine hundred thirteen".