213345674 has 8 divisors (see below), whose sum is σ = 321677220. Its totient is φ = 106119936.

The previous prime is 213345653. The next prime is 213345697. The reversal of 213345674 is 476543312.

It can be written as a sum of positive squares in 2 ways, for example, as 207561649 + 5784025 = 14407^2 + 2405^2 .

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

It is a super-2 number, since 2×213345674² = 91032753229028552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275969 + ... + 276740.

Almost surely, 2^213345674 is an apocalyptic number.

213345674 is a deficient number, since it is larger than the sum of its proper divisors (108331546).

213345674 is a wasteful number, since it uses less digits than its factorization.

213345674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552904.

The product of its digits is 60480, while the sum is 35.

The square root of 213345674 is about 14606.3573145394. The cubic root of 213345674 is about 597.5321542193.

Adding to 213345674 its reverse (476543312), we get a palindrome (689888986).

The spelling of 213345674 in words is "two hundred thirteen million, three hundred forty-five thousand, six hundred seventy-four".