32149861 has 2 divisors, whose sum is σ = 32149862. Its totient is φ = 32149860.

The previous prime is 32149841. The next prime is 32149891. The reversal of 32149861 is 16894123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32148900 + 961 = 5670^2 + 31^2 .

It is a cyclic number.

It is not a de Polignac number, because 32149861 - 2⁵ = 32149829 is a prime.

It is a super-2 number, since 2×32149861² = 2067227124638642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32149811) 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, 16074930 + 16074931.

It is an arithmetic number, because the mean of its divisors is an integer number (16074931).

Almost surely, 2^32149861 is an apocalyptic number.

It is an amenable number.

32149861 is a deficient number, since it is larger than the sum of its proper divisors (1).

32149861 is an equidigital number, since it uses as much as digits as its factorization.

32149861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 34.

The square root of 32149861 is about 5670.0847436348. The cubic root of 32149861 is about 317.9750418818.

The spelling of 32149861 in words is "thirty-two million, one hundred forty-nine thousand, eight hundred sixty-one".