213214004 has 6 divisors (see below), whose sum is σ = 373124514. Its totient is φ = 106607000.

The previous prime is 213213997. The next prime is 213214009. The reversal of 213214004 is 400412312.

213214004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 132250000 + 80964004 = 11500^2 + 8998^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213214009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26651747 + ... + 26651754.

It is an arithmetic number, because the mean of its divisors is an integer number (62187419).

Almost surely, 2^213214004 is an apocalyptic number.

It is an amenable number.

213214004 is a deficient number, since it is larger than the sum of its proper divisors (159910510).

213214004 is a wasteful number, since it uses less digits than its factorization.

213214004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53303505 (or 53303503 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 213214004 is about 14601.8493349301. The cubic root of 213214004 is about 597.4092031286.

Adding to 213214004 its reverse (400412312), we get a palindrome (613626316).

The spelling of 213214004 in words is "two hundred thirteen million, two hundred fourteen thousand, four".