213127340 has 12 divisors (see below), whose sum is σ = 447567456. Its totient is φ = 85250928.

The previous prime is 213127337. The next prime is 213127357. The reversal of 213127340 is 43721312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5328164 + ... + 5328203.

It is an arithmetic number, because the mean of its divisors is an integer number (37297288).

Almost surely, 2^213127340 is an apocalyptic number.

213127340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213127340 is an abundant number, since it is smaller than the sum of its proper divisors (234440116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213127340 is a wasteful number, since it uses less digits than its factorization.

213127340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10656376 (or 10656374 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 213127340 is about 14598.8814640026. The cubic root of 213127340 is about 597.3282502103.

Adding to 213127340 its reverse (43721312), we get a palindrome (256848652).

The spelling of 213127340 in words is "two hundred thirteen million, one hundred twenty-seven thousand, three hundred forty".