201245797 has 4 divisors (see below), whose sum is σ = 201355456. Its totient is φ = 201136140.

The previous prime is 201245789. The next prime is 201245801. The reversal of 201245797 is 797542102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201245797 - 2³ = 201245789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201245767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52029 + ... + 55762.

It is an arithmetic number, because the mean of its divisors is an integer number (50338864).

Almost surely, 2^201245797 is an apocalyptic number.

It is an amenable number.

201245797 is a deficient number, since it is larger than the sum of its proper divisors (109659).

201245797 is a wasteful number, since it uses less digits than its factorization.

201245797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109658.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 201245797 is about 14186.1128220524. The cubic root of 201245797 is about 586.0152793370.

Adding to 201245797 its reverse (797542102), we get a palindrome (998787899).

It can be divided in two parts, 20124 and 5797, that added together give a square (25921 = 161²).

The spelling of 201245797 in words is "two hundred one million, two hundred forty-five thousand, seven hundred ninety-seven".