213253366 has 8 divisors (see below), whose sum is σ = 320620104. Its totient is φ = 106380000.

The previous prime is 213253357. The next prime is 213253373. The reversal of 213253366 is 663352312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×213253366² = 90953996220659912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122260 + ... + 123991.

It is an arithmetic number, because the mean of its divisors is an integer number (40077513).

Almost surely, 2^213253366 is an apocalyptic number.

213253366 is a deficient number, since it is larger than the sum of its proper divisors (107366738).

213253366 is a wasteful number, since it uses less digits than its factorization.

213253366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246686.

The product of its digits is 19440, while the sum is 31.

The square root of 213253366 is about 14603.1971157004. The cubic root of 213253366 is about 597.4459639630.

The spelling of 213253366 in words is "two hundred thirteen million, two hundred fifty-three thousand, three hundred sixty-six".