212299508 has 6 divisors (see below), whose sum is σ = 371524146. Its totient is φ = 106149752.

The previous prime is 212299489. The next prime is 212299531. The reversal of 212299508 is 805992212.

It can be written as a sum of positive squares in only one way, i.e., 182466064 + 29833444 = 13508^2 + 5462^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26537435 + ... + 26537442.

It is an arithmetic number, because the mean of its divisors is an integer number (61920691).

Almost surely, 2^212299508 is an apocalyptic number.

It is an amenable number.

212299508 is a deficient number, since it is larger than the sum of its proper divisors (159224638).

212299508 is a wasteful number, since it uses less digits than its factorization.

212299508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53074881 (or 53074879 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 212299508 is about 14570.5012954256. The cubic root of 212299508 is about 596.5538633161.

The spelling of 212299508 in words is "two hundred twelve million, two hundred ninety-nine thousand, five hundred eight".