213126380 has 24 divisors (see below), whose sum is σ = 453872160. Its totient is φ = 84049280.

The previous prime is 213126377. The next prime is 213126427. The reversal of 213126380 is 83621312.

It is an unprimeable number.

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, 73625 + ... + 76464.

It is an arithmetic number, because the mean of its divisors is an integer number (18911340).

Almost surely, 2^213126380 is an apocalyptic number.

213126380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213126380 is an abundant number, since it is smaller than the sum of its proper divisors (240745780).

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

213126380 is a wasteful number, since it uses less digits than its factorization.

213126380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150169 (or 150167 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 213126380 is about 14598.8485847343. The cubic root of 213126380 is about 597.3273533506.

Adding to 213126380 its reverse (83621312), we get a palindrome (296747692).

The spelling of 213126380 in words is "two hundred thirteen million, one hundred twenty-six thousand, three hundred eighty".