212052142 has 4 divisors (see below), whose sum is σ = 318078216. Its totient is φ = 106026070.

The previous prime is 212052133. The next prime is 212052161. The reversal of 212052142 is 241250212.

212052142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×212052142² = 89932221853576328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53013034 + ... + 53013037.

It is an arithmetic number, because the mean of its divisors is an integer number (79519554).

Almost surely, 2^212052142 is an apocalyptic number.

212052142 is a deficient number, since it is larger than the sum of its proper divisors (106026074).

212052142 is a wasteful number, since it uses less digits than its factorization.

212052142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106026073.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 212052142 is about 14562.0102321074. The cubic root of 212052142 is about 596.3220767938.

The spelling of 212052142 in words is "two hundred twelve million, fifty-two thousand, one hundred forty-two".