201322451 has 8 divisors (see below), whose sum is σ = 220177008. Its totient is φ = 182560000.

The previous prime is 201322447. The next prime is 201322453. The reversal of 201322451 is 154223102.

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 201322451 - 2² = 201322447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201322453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18410 + ... + 27231.

It is an arithmetic number, because the mean of its divisors is an integer number (27522126).

Almost surely, 2^201322451 is an apocalyptic number.

201322451 is a deficient number, since it is larger than the sum of its proper divisors (18854557).

201322451 is a wasteful number, since it uses less digits than its factorization.

201322451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46053.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 201322451 is about 14188.8142915467. The cubic root of 201322451 is about 586.0896737901.

Adding to 201322451 its reverse (154223102), we get a palindrome (355545553).

The spelling of 201322451 in words is "two hundred one million, three hundred twenty-two thousand, four hundred fifty-one".