2001264141 has 4 divisors (see below), whose sum is σ = 2668352192. Its totient is φ = 1334176092.

The previous prime is 2001264137. The next prime is 2001264143. The reversal of 2001264141 is 1414621002.

It is a happy number.

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 not a de Polignac number, because 2001264141 - 2² = 2001264137 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 (2001264143) 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, 333544021 + ... + 333544026.

It is an arithmetic number, because the mean of its divisors is an integer number (667088048).

Almost surely, 2^2001264141 is an apocalyptic number.

It is an amenable number.

2001264141 is a deficient number, since it is larger than the sum of its proper divisors (667088051).

2001264141 is an equidigital number, since it uses as much as digits as its factorization.

2001264141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667088050.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 2001264141 is about 44735.4908434008. The cubic root of 2001264141 is about 1260.1864469622.

Adding to 2001264141 its reverse (1414621002), we get a palindrome (3415885143).

The spelling of 2001264141 in words is "two billion, one million, two hundred sixty-four thousand, one hundred forty-one".