213672345 has 8 divisors (see below), whose sum is σ = 341875776. Its totient is φ = 113958576.

The previous prime is 213672311. The next prime is 213672353. The reversal of 213672345 is 543276312.

213672345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 213672345 - 2¹⁵ = 213639577 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7122397 + ... + 7122426.

It is an arithmetic number, because the mean of its divisors is an integer number (42734472).

Almost surely, 2^213672345 is an apocalyptic number.

It is an amenable number.

213672345 is a deficient number, since it is larger than the sum of its proper divisors (128203431).

213672345 is a wasteful number, since it uses less digits than its factorization.

213672345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14244831.

The product of its digits is 30240, while the sum is 33.

The square root of 213672345 is about 14617.5355309984. The cubic root of 213672345 is about 597.8369754675.

The spelling of 213672345 in words is "two hundred thirteen million, six hundred seventy-two thousand, three hundred forty-five".