32020381 has 2 divisors, whose sum is σ = 32020382. Its totient is φ = 32020380.

The previous prime is 32020363. The next prime is 32020403. The reversal of 32020381 is 18302023.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29268100 + 2752281 = 5410^2 + 1659^2 .

It is an emirp because it is prime and its reverse (18302023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32020381 - 2⁵ = 32020349 is a prime.

It is a super-2 number, since 2×32020381² = 2050609598770322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32020081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16010190 + 16010191.

It is an arithmetic number, because the mean of its divisors is an integer number (16010191).

Almost surely, 2^32020381 is an apocalyptic number.

It is an amenable number.

32020381 is a deficient number, since it is larger than the sum of its proper divisors (1).

32020381 is an equidigital number, since it uses as much as digits as its factorization.

32020381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 32020381 is about 5658.6554056595. The cubic root of 32020381 is about 317.5475977993.

The spelling of 32020381 in words is "thirty-two million, twenty thousand, three hundred eighty-one".