32149231 has 2 divisors, whose sum is σ = 32149232. Its totient is φ = 32149230.

The previous prime is 32149181. The next prime is 32149237. The reversal of 32149231 is 13294123.

It is a strong prime.

It is an emirp because it is prime and its reverse (13294123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32149231 - 2⁹ = 32148719 is a prime.

It is a super-2 number, since 2×32149231² = 2067146107782722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32149196 and 32149205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32149237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16074615 + 16074616.

It is an arithmetic number, because the mean of its divisors is an integer number (16074616).

Almost surely, 2^32149231 is an apocalyptic number.

32149231 is a deficient number, since it is larger than the sum of its proper divisors (1).

32149231 is an equidigital number, since it uses as much as digits as its factorization.

32149231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 25.

The square root of 32149231 is about 5670.0291886374. The cubic root of 32149231 is about 317.9729648839.

The spelling of 32149231 in words is "thirty-two million, one hundred forty-nine thousand, two hundred thirty-one".