212314042 has 4 divisors (see below), whose sum is σ = 318471066. Its totient is φ = 106157020.

The previous prime is 212314033. The next prime is 212314049. The reversal of 212314042 is 240413212.

It is a Cunningham number, because it is equal to 14571²+1.

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

It can be written as a sum of positive squares in only one way, i.e., 212314041 + 1 = 14571^2 + 1^2 .

It is not an unprimeable number, because it can be changed into a prime (212314049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53078509 + ... + 53078512.

Almost surely, 2^212314042 is an apocalyptic number.

212314042 is a deficient number, since it is larger than the sum of its proper divisors (106157024).

212314042 is a wasteful number, since it uses less digits than its factorization.

212314042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106157023.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 212314042 is about 14571.0000343147. Note that the first 4 decimals coincide. The cubic root of 212314042 is about 596.5674763418.

Adding to 212314042 its reverse (240413212), we get a palindrome (452727254).

The spelling of 212314042 in words is "two hundred twelve million, three hundred fourteen thousand, forty-two".