211147342 has 16 divisors (see below), whose sum is σ = 381018240. Its totient is φ = 85728888.

The previous prime is 211147309. The next prime is 211147379. The reversal of 211147342 is 243741112.

It is a congruent number.

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, 396628 + ... + 397159.

It is an arithmetic number, because the mean of its divisors is an integer number (23813640).

Almost surely, 2^211147342 is an apocalyptic number.

211147342 is a deficient number, since it is larger than the sum of its proper divisors (169870898).

211147342 is a wasteful number, since it uses less digits than its factorization.

211147342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793815.

The product of its digits is 1344, while the sum is 25.

The square root of 211147342 is about 14530.9098820411. The cubic root of 211147342 is about 595.4727236820.

Adding to 211147342 its reverse (243741112), we get a palindrome (454888454).

The spelling of 211147342 in words is "two hundred eleven million, one hundred forty-seven thousand, three hundred forty-two".