213012064 has 12 divisors (see below), whose sum is σ = 419367564. Its totient is φ = 106506016.

The previous prime is 213012049. The next prime is 213012073. The reversal of 213012064 is 460210312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3328282 + ... + 3328345.

It is an arithmetic number, because the mean of its divisors is an integer number (34947297).

Almost surely, 2^213012064 is an apocalyptic number.

It is an amenable number.

213012064 is a deficient number, since it is larger than the sum of its proper divisors (206355500).

213012064 is an equidigital number, since it uses as much as digits as its factorization.

213012064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6656637 (or 6656629 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 213012064 is about 14594.9328193041. The cubic root of 213012064 is about 597.2205367816.

Adding to 213012064 its reverse (460210312), we get a palindrome (673222376).

The spelling of 213012064 in words is "two hundred thirteen million, twelve thousand, sixty-four".