842141969 has 4 divisors (see below), whose sum is σ = 845419044. Its totient is φ = 838864896.

The previous prime is 842141947. The next prime is 842141977. The reversal of 842141969 is 969141248.

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

It can be written as a sum of positive squares in 2 ways, for example, as 779526400 + 62615569 = 27920^2 + 7913^2 .

It is a cyclic number.

It is not a de Polignac number, because 842141969 - 2²⁴ = 825364753 is a prime.

It is a super-2 number, since 2×842141969² = 1418406191902393922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (842141929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1638152 + ... + 1638665.

It is an arithmetic number, because the mean of its divisors is an integer number (211354761).

Almost surely, 2^842141969 is an apocalyptic number.

It is an amenable number.

842141969 is a deficient number, since it is larger than the sum of its proper divisors (3277075).

842141969 is a wasteful number, since it uses less digits than its factorization.

842141969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277074.

The product of its digits is 124416, while the sum is 44.

The square root of 842141969 is about 29019.6824414052. The cubic root of 842141969 is about 944.3401117100.

The spelling of 842141969 in words is "eight hundred forty-two million, one hundred forty-one thousand, nine hundred sixty-nine".