212253134 has 4 divisors (see below), whose sum is σ = 318379704. Its totient is φ = 106126566.

The previous prime is 212253133. The next prime is 212253137. The reversal of 212253134 is 431352212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212253133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53063282 + ... + 53063285.

It is an arithmetic number, because the mean of its divisors is an integer number (79594926).

Almost surely, 2^212253134 is an apocalyptic number.

212253134 is a deficient number, since it is larger than the sum of its proper divisors (106126570).

212253134 is a wasteful number, since it uses less digits than its factorization.

212253134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106126569.

The product of its digits is 1440, while the sum is 23.

The square root of 212253134 is about 14568.9098425380. The cubic root of 212253134 is about 596.5104237376.

The spelling of 212253134 in words is "two hundred twelve million, two hundred fifty-three thousand, one hundred thirty-four".