211442054 has 4 divisors (see below), whose sum is σ = 317163084. Its totient is φ = 105721026.

The previous prime is 211442029. The next prime is 211442071. The reversal of 211442054 is 450244112.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52860512 + ... + 52860515.

It is an arithmetic number, because the mean of its divisors is an integer number (79290771).

Almost surely, 2^211442054 is an apocalyptic number.

211442054 is a deficient number, since it is larger than the sum of its proper divisors (105721030).

211442054 is a wasteful number, since it uses less digits than its factorization.

211442054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105721029.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 211442054 is about 14541.0472112568. The cubic root of 211442054 is about 595.7496414810.

Adding to 211442054 its reverse (450244112), we get a palindrome (661686166).

The spelling of 211442054 in words is "two hundred eleven million, four hundred forty-two thousand, fifty-four".