641412311 has 4 divisors (see below), whose sum is σ = 644995800. Its totient is φ = 637828824.

The previous prime is 641412301. The next prime is 641412341. The reversal of 641412311 is 113214146.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 641412311 - 2²⁶ = 574303447 is a prime.

It is a super-2 number, since 2×641412311² = 822819505404721442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641412301) 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, 1791476 + ... + 1791833.

It is an arithmetic number, because the mean of its divisors is an integer number (161248950).

Almost surely, 2^641412311 is an apocalyptic number.

641412311 is a deficient number, since it is larger than the sum of its proper divisors (3583489).

641412311 is a wasteful number, since it uses less digits than its factorization.

641412311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3583488.

The product of its digits is 576, while the sum is 23.

The square root of 641412311 is about 25326.1191460516. The cubic root of 641412311 is about 862.4073127592.

Adding to 641412311 its reverse (113214146), we get a palindrome (754626457).

The spelling of 641412311 in words is "six hundred forty-one million, four hundred twelve thousand, three hundred eleven".