212677142 has 4 divisors (see below), whose sum is σ = 319015716. Its totient is φ = 106338570.

The previous prime is 212677133. The next prime is 212677177. The reversal of 212677142 is 241776212.

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

It is a junction number, because it is equal to n+sod(n) for n = 212677099 and 212677108.

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, 53169284 + ... + 53169287.

It is an arithmetic number, because the mean of its divisors is an integer number (79753929).

Almost surely, 2^212677142 is an apocalyptic number.

212677142 is a deficient number, since it is larger than the sum of its proper divisors (106338574).

212677142 is a wasteful number, since it uses less digits than its factorization.

212677142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106338573.

The product of its digits is 9408, while the sum is 32.

The square root of 212677142 is about 14583.4543918785. The cubic root of 212677142 is about 596.9073663799.

The spelling of 212677142 in words is "two hundred twelve million, six hundred seventy-seven thousand, one hundred forty-two".