213013412 has 6 divisors (see below), whose sum is σ = 372773478. Its totient is φ = 106506704.

The previous prime is 213013399. The next prime is 213013429. The reversal of 213013412 is 214310312.

It can be written as a sum of positive squares in only one way, i.e., 212693056 + 320356 = 14584^2 + 566^2 .

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 as a sum of consecutive naturals, namely, 26626673 + ... + 26626680.

It is an arithmetic number, because the mean of its divisors is an integer number (62128913).

Almost surely, 2^213013412 is an apocalyptic number.

It is an amenable number.

213013412 is a deficient number, since it is larger than the sum of its proper divisors (159760066).

213013412 is a wasteful number, since it uses less digits than its factorization.

213013412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53253357 (or 53253355 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 213013412 is about 14594.9789996423. The cubic root of 213013412 is about 597.2217965719.

Adding to 213013412 its reverse (214310312), we get a palindrome (427323724).

The spelling of 213013412 in words is "two hundred thirteen million, thirteen thousand, four hundred twelve".