641792141 has 4 divisors (see below), whose sum is σ = 641894592. Its totient is φ = 641689692.

The previous prime is 641792117. The next prime is 641792183. The reversal of 641792141 is 141297146.

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 a de Polignac number, because none of the positive numbers 2^k-641792141 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 (641792111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41171 + ... + 54576.

It is an arithmetic number, because the mean of its divisors is an integer number (160473648).

Almost surely, 2^641792141 is an apocalyptic number.

It is an amenable number.

641792141 is a deficient number, since it is larger than the sum of its proper divisors (102451).

641792141 is an equidigital number, since it uses as much as digits as its factorization.

641792141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102450.

The product of its digits is 12096, while the sum is 35.

The square root of 641792141 is about 25333.6168163964. The cubic root of 641792141 is about 862.5775119305.

The spelling of 641792141 in words is "six hundred forty-one million, seven hundred ninety-two thousand, one hundred forty-one".