211345493 has 8 divisors (see below), whose sum is σ = 226240800. Its totient is φ = 196827408.

The previous prime is 211345483. The next prime is 211345501. The reversal of 211345493 is 394543112.

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 211345493 - 2¹² = 211341397 is a prime.

It is a super-2 number, since 2×211345493² = 89333834822826098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211345483) 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, 93146 + ... + 95387.

It is an arithmetic number, because the mean of its divisors is an integer number (28280100).

Almost surely, 2^211345493 is an apocalyptic number.

It is an amenable number.

211345493 is a deficient number, since it is larger than the sum of its proper divisors (14895307).

211345493 is a wasteful number, since it uses less digits than its factorization.

211345493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188611.

The product of its digits is 12960, while the sum is 32.

The square root of 211345493 is about 14537.7265416571. The cubic root of 211345493 is about 595.6589390257.

The spelling of 211345493 in words is "two hundred eleven million, three hundred forty-five thousand, four hundred ninety-three".