201243597 has 16 divisors (see below), whose sum is σ = 274631040. Its totient is φ = 131032512.

The previous prime is 201243551. The next prime is 201243617. The reversal of 201243597 is 795342102.

It is not a de Polignac number, because 201243597 - 2⁶ = 201243533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201243197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33648 + ... + 39174.

It is an arithmetic number, because the mean of its divisors is an integer number (17164440).

Almost surely, 2^201243597 is an apocalyptic number.

It is an amenable number.

201243597 is a deficient number, since it is larger than the sum of its proper divisors (73387443).

201243597 is a wasteful number, since it uses less digits than its factorization.

201243597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5812.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 201243597 is about 14186.0352812193. The cubic root of 201243597 is about 586.0131439080.

Adding to 201243597 its reverse (795342102), we get a palindrome (996585699).

The spelling of 201243597 in words is "two hundred one million, two hundred forty-three thousand, five hundred ninety-seven".