32631161 has 2 divisors, whose sum is σ = 32631162. Its totient is φ = 32631160.

The previous prime is 32631101. The next prime is 32631167. The reversal of 32631161 is 16113623.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28090000 + 4541161 = 5300^2 + 2131^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32631161 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (32631167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16315580 + 16315581.

It is an arithmetic number, because the mean of its divisors is an integer number (16315581).

Almost surely, 2^32631161 is an apocalyptic number.

It is an amenable number.

32631161 is a deficient number, since it is larger than the sum of its proper divisors (1).

32631161 is an equidigital number, since it uses as much as digits as its factorization.

32631161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 23.

The square root of 32631161 is about 5712.3691232272. The cubic root of 32631161 is about 319.5539390534.

Adding to 32631161 its reverse (16113623), we get a palindrome (48744784).

The spelling of 32631161 in words is "thirty-two million, six hundred thirty-one thousand, one hundred sixty-one".