213046225 has 12 divisors (see below), whose sum is σ = 301917184. Its totient is φ = 146088720.

The previous prime is 213046219. The next prime is 213046237. The reversal of 213046225 is 522640312.

It is not a de Polignac number, because 213046225 - 2¹⁹ = 212521937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213046225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 608529 + ... + 608878.

Almost surely, 2^213046225 is an apocalyptic number.

213046225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213046225 is a deficient number, since it is larger than the sum of its proper divisors (88870959).

213046225 is a wasteful number, since it uses less digits than its factorization.

213046225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217424 (or 1217419 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 213046225 is about 14596.1030758213. The cubic root of 213046225 is about 597.2524607328.

Adding to 213046225 its reverse (522640312), we get a palindrome (735686537).

The spelling of 213046225 in words is "two hundred thirteen million, forty-six thousand, two hundred twenty-five".