213802012 has 6 divisors (see below), whose sum is σ = 374153528. Its totient is φ = 106901004.

The previous prime is 213801983. The next prime is 213802019. The reversal of 213802012 is 210208312.

It is a super-2 number, since 2×213802012² = 91422600670496288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213802019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26725248 + ... + 26725255.

Almost surely, 2^213802012 is an apocalyptic number.

It is an amenable number.

213802012 is a deficient number, since it is larger than the sum of its proper divisors (160351516).

213802012 is a wasteful number, since it uses less digits than its factorization.

213802012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53450507 (or 53450505 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 213802012 is about 14621.9701818873. The cubic root of 213802012 is about 597.9578834109.

The spelling of 213802012 in words is "two hundred thirteen million, eight hundred two thousand, twelve".