212531254 has 16 divisors (see below), whose sum is σ = 344323728. Its totient is φ = 97804512.

The previous prime is 212531213. The next prime is 212531261. The reversal of 212531254 is 452135212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2757 + ... + 20800.

It is an arithmetic number, because the mean of its divisors is an integer number (21520233).

Almost surely, 2^212531254 is an apocalyptic number.

212531254 is a deficient number, since it is larger than the sum of its proper divisors (131792474).

212531254 is a wasteful number, since it uses less digits than its factorization.

212531254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23919.

The product of its digits is 2400, while the sum is 25.

The square root of 212531254 is about 14578.4517010552. The cubic root of 212531254 is about 596.7708503128.

Adding to 212531254 its reverse (452135212), we get a palindrome (664666466).

The spelling of 212531254 in words is "two hundred twelve million, five hundred thirty-one thousand, two hundred fifty-four".