1641171467 has 4 divisors (see below), whose sum is σ = 1767415440. Its totient is φ = 1514927496.

The previous prime is 1641171443. The next prime is 1641171479. The reversal of 1641171467 is 7641711461.

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 1641171467 - 2¹⁴ = 1641155083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1641171467.

It is not an unprimeable number, because it can be changed into a prime (1641171437) 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, 63121967 + ... + 63121992.

It is an arithmetic number, because the mean of its divisors is an integer number (441853860).

Almost surely, 2^1641171467 is an apocalyptic number.

1641171467 is a deficient number, since it is larger than the sum of its proper divisors (126243973).

1641171467 is a wasteful number, since it uses less digits than its factorization.

1641171467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126243972.

The product of its digits is 28224, while the sum is 38.

The square root of 1641171467 is about 40511.3745385170. The cubic root of 1641171467 is about 1179.5544298292.

It can be divided in two parts, 16411 and 71467, that added together give a palindrome (87878).

The spelling of 1641171467 in words is "one billion, six hundred forty-one million, one hundred seventy-one thousand, four hundred sixty-seven".