212831054 has 16 divisors (see below), whose sum is σ = 326093040. Its totient is φ = 104149440.

The previous prime is 212831053. The next prime is 212831057. The reversal of 212831054 is 450138212.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212831053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23624 + ... + 31364.

It is an arithmetic number, because the mean of its divisors is an integer number (20380815).

Almost surely, 2^212831054 is an apocalyptic number.

212831054 is a deficient number, since it is larger than the sum of its proper divisors (113261986).

212831054 is a wasteful number, since it uses less digits than its factorization.

212831054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8035.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 212831054 is about 14588.7303765612. The cubic root of 212831054 is about 597.0513233226.

Adding to 212831054 its reverse (450138212), we get a palindrome (662969266).

The spelling of 212831054 in words is "two hundred twelve million, eight hundred thirty-one thousand, fifty-four".