32161907 has 2 divisors, whose sum is σ = 32161908. Its totient is φ = 32161906.

The previous prime is 32161901. The next prime is 32161931. The reversal of 32161907 is 70916123.

It is a weak prime.

It is an emirp because it is prime and its reverse (70916123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32161907 - 2⁴ = 32161891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32161907.

It is not a weakly prime, because it can be changed into another prime (32161901) 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, 16080953 + 16080954.

It is an arithmetic number, because the mean of its divisors is an integer number (16080954).

Almost surely, 2^32161907 is an apocalyptic number.

32161907 is a deficient number, since it is larger than the sum of its proper divisors (1).

32161907 is an equidigital number, since it uses as much as digits as its factorization.

32161907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 32161907 is about 5671.1468857719. The cubic root of 32161907 is about 318.0147501827.

The spelling of 32161907 in words is "thirty-two million, one hundred sixty-one thousand, nine hundred seven".