212972174 has 4 divisors (see below), whose sum is σ = 319458264. Its totient is φ = 106486086.

The previous prime is 212972131. The next prime is 212972189. The reversal of 212972174 is 471279212.

212972174 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 Curzon number.

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, 53243042 + ... + 53243045.

It is an arithmetic number, because the mean of its divisors is an integer number (79864566).

Almost surely, 2^212972174 is an apocalyptic number.

212972174 is a deficient number, since it is larger than the sum of its proper divisors (106486090).

212972174 is a wasteful number, since it uses less digits than its factorization.

212972174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106486089.

The product of its digits is 14112, while the sum is 35.

The square root of 212972174 is about 14593.5661851379. The cubic root of 212972174 is about 597.1832546765.

The spelling of 212972174 in words is "two hundred twelve million, nine hundred seventy-two thousand, one hundred seventy-four".