211343145 has 32 divisors (see below), whose sum is σ = 365105664. Its totient is φ = 103776000.

The previous prime is 211343123. The next prime is 211343173. The reversal of 211343145 is 541343112.

It is a happy number.

211343145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211343145 - 2⁶ = 211343081 is a prime.

It is a super-3 number, since 3×211343145³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88720 + ... + 91070.

It is an arithmetic number, because the mean of its divisors is an integer number (11409552).

Almost surely, 2^211343145 is an apocalyptic number.

It is an amenable number.

211343145 is a deficient number, since it is larger than the sum of its proper divisors (153762519).

211343145 is a wasteful number, since it uses less digits than its factorization.

211343145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2833.

The product of its digits is 1440, while the sum is 24.

The square root of 211343145 is about 14537.6457860274. The cubic root of 211343145 is about 595.6567331394.

Adding to 211343145 its reverse (541343112), we get a palindrome (752686257).

The spelling of 211343145 in words is "two hundred eleven million, three hundred forty-three thousand, one hundred forty-five".