201324517 has 2 divisors, whose sum is σ = 201324518. Its totient is φ = 201324516.

The previous prime is 201324503. The next prime is 201324559. The reversal of 201324517 is 715423102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168766081 + 32558436 = 12991^2 + 5706^2 .

It is a cyclic number.

It is not a de Polignac number, because 201324517 - 2¹¹ = 201322469 is a prime.

It is a super-2 number, since 2×201324517² = 81063122290566578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201324491 and 201324500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201324577) 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 as a sum of consecutive naturals, namely, 100662258 + 100662259.

It is an arithmetic number, because the mean of its divisors is an integer number (100662259).

Almost surely, 2^201324517 is an apocalyptic number.

It is an amenable number.

201324517 is a deficient number, since it is larger than the sum of its proper divisors (1).

201324517 is an equidigital number, since it uses as much as digits as its factorization.

201324517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 201324517 is about 14188.8870951883. The cubic root of 201324517 is about 586.0916786288.

Adding to 201324517 its reverse (715423102), we get a palindrome (916747619).

It can be divided in two parts, 20132 and 4517, that added together give a square (24649 = 157²).

The spelling of 201324517 in words is "two hundred one million, three hundred twenty-four thousand, five hundred seventeen".