36542881 has 2 divisors, whose sum is σ = 36542882. Its totient is φ = 36542880.

The previous prime is 36542873. The next prime is 36542897. The reversal of 36542881 is 18824563.

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., 18352656 + 18190225 = 4284^2 + 4265^2 .

It is an emirp because it is prime and its reverse (18824563) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36542881 - 2³ = 36542873 is a prime.

It is a super-2 number, since 2×36542881² = 2670764303560322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 36542881.

It is not a weakly prime, because it can be changed into another prime (36542381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18271440 + 18271441.

It is an arithmetic number, because the mean of its divisors is an integer number (18271441).

Almost surely, 2^36542881 is an apocalyptic number.

It is an amenable number.

36542881 is a deficient number, since it is larger than the sum of its proper divisors (1).

36542881 is an equidigital number, since it uses as much as digits as its factorization.

36542881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 37.

The square root of 36542881 is about 6045.0708019013. The cubic root of 36542881 is about 331.8442227776.

The spelling of 36542881 in words is "thirty-six million, five hundred forty-two thousand, eight hundred eighty-one".