213327081 has 32 divisors (see below), whose sum is σ = 347466240. Its totient is φ = 128278800.

The previous prime is 213327071. The next prime is 213327083. The reversal of 213327081 is 180723312.

It is not a de Polignac number, because 213327081 - 2⁶ = 213327017 is a prime.

It is a super-2 number, since 2×213327081² = 91016886975961122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (213327083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36166 + ... + 41648.

It is an arithmetic number, because the mean of its divisors is an integer number (10858320).

Almost surely, 2^213327081 is an apocalyptic number.

It is an amenable number.

213327081 is a deficient number, since it is larger than the sum of its proper divisors (134139159).

213327081 is a wasteful number, since it uses less digits than its factorization.

213327081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5634 (or 5628 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 213327081 is about 14605.7208312360. The cubic root of 213327081 is about 597.5147954764.

The spelling of 213327081 in words is "two hundred thirteen million, three hundred twenty-seven thousand, eighty-one".