213400325 has 12 divisors (see below), whose sum is σ = 276122208. Its totient is φ = 163297200.

The previous prime is 213400301. The next prime is 213400331. The reversal of 213400325 is 523004312.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-213400325 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213400297 and 213400306.

It is a congruent number.

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 in 11 ways as a sum of consecutive naturals, for example, 184991 + ... + 186140.

It is an arithmetic number, because the mean of its divisors is an integer number (23010184).

Almost surely, 2^213400325 is an apocalyptic number.

213400325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213400325 is a deficient number, since it is larger than the sum of its proper divisors (62721883).

213400325 is a wasteful number, since it uses less digits than its factorization.

213400325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371164 (or 371159 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 213400325 is about 14608.2279897324. The cubic root of 213400325 is about 597.5831714896.

Adding to 213400325 its reverse (523004312), we get a palindrome (736404637).

The spelling of 213400325 in words is "two hundred thirteen million, four hundred thousand, three hundred twenty-five".