213000225 has 72 divisors (see below), whose sum is σ = 387379968. Its totient is φ = 103142400.

The previous prime is 213000211. The next prime is 213000239. The reversal of 213000225 is 522000312.

It is an interprime number because it is at equal distance from previous prime (213000211) and next prime (213000239).

It is not a de Polignac number, because 213000225 - 2⁷ = 213000097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 671767 + ... + 672083.

Almost surely, 2^213000225 is an apocalyptic number.

213000225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213000225 is a deficient number, since it is larger than the sum of its proper divisors (174379743).

213000225 is a wasteful number, since it uses less digits than its factorization.

213000225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 213000225 is about 14594.5272276974. The cubic root of 213000225 is about 597.2094722675.

Adding to 213000225 its reverse (522000312), we get a palindrome (735000537).

The spelling of 213000225 in words is "two hundred thirteen million, two hundred twenty-five", and thus it is an aban number.