212134692 has 48 divisors (see below), whose sum is σ = 617121792. Its totient is φ = 55099680.

The previous prime is 212134679. The next prime is 212134693. The reversal of 212134692 is 296431212.

It is a super-2 number, since 2×212134692² = 90002255099869728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212134693) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 113868 + ... + 115715.

It is an arithmetic number, because the mean of its divisors is an integer number (12856704).

Almost surely, 2^212134692 is an apocalyptic number.

212134692 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212134692 is an abundant number, since it is smaller than the sum of its proper divisors (404987100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212134692 is a wasteful number, since it uses less digits than its factorization.

212134692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229608 (or 229606 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 212134692 is about 14564.8443863984. The cubic root of 212134692 is about 596.3994477029.

The spelling of 212134692 in words is "two hundred twelve million, one hundred thirty-four thousand, six hundred ninety-two".