213172441 has 8 divisors (see below), whose sum is σ = 222597504. Its totient is φ = 203760480.

The previous prime is 213172433. The next prime is 213172451. The reversal of 213172441 is 144271312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213172441 - 2³ = 213172433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213172451) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 45781 + ... + 50221.

It is an arithmetic number, because the mean of its divisors is an integer number (27824688).

Almost surely, 2^213172441 is an apocalyptic number.

It is an amenable number.

213172441 is a deficient number, since it is larger than the sum of its proper divisors (9425063).

213172441 is a wasteful number, since it uses less digits than its factorization.

213172441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6551.

The product of its digits is 1344, while the sum is 25.

The square root of 213172441 is about 14600.4260554273. The cubic root of 213172441 is about 597.3703818319.

The spelling of 213172441 in words is "two hundred thirteen million, one hundred seventy-two thousand, four hundred forty-one".