212849913 has 32 divisors (see below), whose sum is σ = 305101440. Its totient is φ = 131604480.

The previous prime is 212849909. The next prime is 212849929. The reversal of 212849913 is 319948212.

It is not a de Polignac number, because 212849913 - 2² = 212849909 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212849963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 757333 + ... + 757613.

It is an arithmetic number, because the mean of its divisors is an integer number (9534420).

Almost surely, 2^212849913 is an apocalyptic number.

It is an amenable number.

212849913 is a deficient number, since it is larger than the sum of its proper divisors (92251527).

212849913 is a wasteful number, since it uses less digits than its factorization.

212849913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537.

The product of its digits is 31104, while the sum is 39.

The square root of 212849913 is about 14589.3767173242. The cubic root of 212849913 is about 597.0689577453.

It can be divided in two parts, 2 and 12849913, that added together give a triangular number (12849915 = T₅₀₆₉).

The spelling of 212849913 in words is "two hundred twelve million, eight hundred forty-nine thousand, nine hundred thirteen".