213173425 has 12 divisors (see below), whose sum is σ = 266808816. Its totient is φ = 168942800.

The previous prime is 213173357. The next prime is 213173459. The reversal of 213173425 is 524371312.

It is not a de Polignac number, because 213173425 - 2²¹ = 211076273 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213173393 and 213173402.

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, 37171 + ... + 42520.

It is an arithmetic number, because the mean of its divisors is an integer number (22234068).

Almost surely, 2^213173425 is an apocalyptic number.

213173425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213173425 is a deficient number, since it is larger than the sum of its proper divisors (53635391).

213173425 is a wasteful number, since it uses less digits than its factorization.

213173425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79808 (or 79803 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 213173425 is about 14600.4597530352. The cubic root of 213173425 is about 597.3713009807.

It can be divided in two parts, 21317 and 3425, that added together give a palindrome (24742).

The spelling of 213173425 in words is "two hundred thirteen million, one hundred seventy-three thousand, four hundred twenty-five".