32146981 has 2 divisors, whose sum is σ = 32146982. Its totient is φ = 32146980.

The previous prime is 32146963. The next prime is 32147009. The reversal of 32146981 is 18964123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32092225 + 54756 = 5665^2 + 234^2 .

It is an emirp because it is prime and its reverse (18964123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32146981 - 2⁷ = 32146853 is a prime.

It is a super-2 number, since 2×32146981² = 2066856774828722, which contains 22 as substring.

It is equal to p_1982329 and since 32146981 and 1982329 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32146901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16073490 + 16073491.

It is an arithmetic number, because the mean of its divisors is an integer number (16073491).

Almost surely, 2^32146981 is an apocalyptic number.

It is an amenable number.

32146981 is a deficient number, since it is larger than the sum of its proper divisors (1).

32146981 is an equidigital number, since it uses as much as digits as its factorization.

32146981 is an evil number, because the sum of its binary digits is even.

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

The square root of 32146981 is about 5669.8307734887. The cubic root of 32146981 is about 317.9655468126.

The spelling of 32146981 in words is "thirty-two million, one hundred forty-six thousand, nine hundred eighty-one".