213054992 has 10 divisors (see below), whose sum is σ = 412794078. Its totient is φ = 106527488.

The previous prime is 213054979. The next prime is 213055001. The reversal of 213054992 is 299450312.

It can be written as a sum of positive squares in only one way, i.e., 172554496 + 40500496 = 13136^2 + 6364^2 .

It is a super-2 number, since 2×213054992² = 90784859232240128, which contains 22 as substring.

It is a zygodrome in base 3.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6657953 + ... + 6657984.

Almost surely, 2^213054992 is an apocalyptic number.

It is an amenable number.

213054992 is a deficient number, since it is larger than the sum of its proper divisors (199739086).

213054992 is a wasteful number, since it uses less digits than its factorization.

213054992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13315945 (or 13315939 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 213054992 is about 14596.4033926170. The cubic root of 213054992 is about 597.2606530715.

The spelling of 213054992 in words is "two hundred thirteen million, fifty-four thousand, nine hundred ninety-two".