212523354 has 12 divisors (see below), whose sum is σ = 460467306. Its totient is φ = 70841112.

The previous prime is 212523343. The next prime is 212523373. The reversal of 212523354 is 453325212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 192515625 + 20007729 = 13875^2 + 4473^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5903409 + ... + 5903444.

Almost surely, 2^212523354 is an apocalyptic number.

212523354 is an abundant number, since it is smaller than the sum of its proper divisors (247943952).

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

212523354 is a wasteful number, since it uses less digits than its factorization.

212523354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11806861 (or 11806858 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 212523354 is about 14578.1807506973. The cubic root of 212523354 is about 596.7634560307.

Adding to 212523354 its reverse (453325212), we get a palindrome (665848566).

The spelling of 212523354 in words is "two hundred twelve million, five hundred twenty-three thousand, three hundred fifty-four".