213655093 has 8 divisors (see below), whose sum is σ = 222616800. Its totient is φ = 204799728.

The previous prime is 213655087. The next prime is 213655109. The reversal of 213655093 is 390556312.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 213655093 - 2⁵ = 213655061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213655493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22471 + ... + 30532.

It is an arithmetic number, because the mean of its divisors is an integer number (27827100).

Almost surely, 2^213655093 is an apocalyptic number.

It is an amenable number.

213655093 is a deficient number, since it is larger than the sum of its proper divisors (8961707).

213655093 is a wasteful number, since it uses less digits than its factorization.

213655093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53171.

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 213655093 is about 14616.9454059321. The cubic root of 213655093 is about 597.8208851601.

The spelling of 213655093 in words is "two hundred thirteen million, six hundred fifty-five thousand, ninety-three".