201310641 has 12 divisors (see below), whose sum is σ = 332322432. Its totient is φ = 115034616.

The previous prime is 201310609. The next prime is 201310691. The reversal of 201310641 is 146013102.

It is a happy number.

201310641 is a `hidden beast` number, since 2 + 0 + 13 + 10 + 641 = 666.

It is not a de Polignac number, because 201310641 - 2⁵ = 201310609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201310601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1597641 + ... + 1597766.

It is an arithmetic number, because the mean of its divisors is an integer number (27693536).

Almost surely, 2^201310641 is an apocalyptic number.

201310641 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

201310641 is a deficient number, since it is larger than the sum of its proper divisors (131011791).

201310641 is a wasteful number, since it uses less digits than its factorization.

201310641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3195420 (or 3195417 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 201310641 is about 14188.3981125425. The cubic root of 201310641 is about 586.0782131468.

Adding to 201310641 its reverse (146013102), we get a palindrome (347323743).

The spelling of 201310641 in words is "two hundred one million, three hundred ten thousand, six hundred forty-one".