212249534 has 8 divisors (see below), whose sum is σ = 363856368. Its totient is φ = 90964080.

The previous prime is 212249507. The next prime is 212249563. The reversal of 212249534 is 435942212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 212249534.

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 in 3 ways as a sum of consecutive naturals, for example, 7580327 + ... + 7580354.

It is an arithmetic number, because the mean of its divisors is an integer number (45482046).

Almost surely, 2^212249534 is an apocalyptic number.

212249534 is a deficient number, since it is larger than the sum of its proper divisors (151606834).

212249534 is a wasteful number, since it uses less digits than its factorization.

212249534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15160690.

The product of its digits is 17280, while the sum is 32.

The square root of 212249534 is about 14568.7862912461. The cubic root of 212249534 is about 596.5070512712.

The spelling of 212249534 in words is "two hundred twelve million, two hundred forty-nine thousand, five hundred thirty-four".