36981213 has 8 divisors (see below), whose sum is σ = 49387776. Its totient is φ = 24614400.

The previous prime is 36981179. The next prime is 36981271. The reversal of 36981213 is 31218963.

36981213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 36981213 - 2⁶ = 36981149 is a prime.

It is a super-2 number, since 2×36981213² = 2735220229902738, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36981283) 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 in 7 ways as a sum of consecutive naturals, for example, 7693 + ... + 11538.

It is an arithmetic number, because the mean of its divisors is an integer number (6173472).

Almost surely, 2^36981213 is an apocalyptic number.

It is an amenable number.

36981213 is a deficient number, since it is larger than the sum of its proper divisors (12406563).

36981213 is a wasteful number, since it uses less digits than its factorization.

36981213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19875.

The product of its digits is 7776, while the sum is 33.

The square root of 36981213 is about 6081.2180523313. The cubic root of 36981213 is about 333.1657770110.

The spelling of 36981213 in words is "thirty-six million, nine hundred eighty-one thousand, two hundred thirteen".