1141667881 has 4 divisors (see below), whose sum is σ = 1154495700. Its totient is φ = 1128840064.

The previous prime is 1141667833. The next prime is 1141667899. The reversal of 1141667881 is 1887661411.

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 121440400 + 1020227481 = 11020^2 + 31941^2 .

It is a cyclic number.

It is not a de Polignac number, because 1141667881 - 2¹³ = 1141659689 is a prime.

It is a super-2 number, since 2×1141667881² = 2606811101014060322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1141667581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6413776 + ... + 6413953.

It is an arithmetic number, because the mean of its divisors is an integer number (288623925).

Almost surely, 2^1141667881 is an apocalyptic number.

It is an amenable number.

1141667881 is a deficient number, since it is larger than the sum of its proper divisors (12827819).

1141667881 is an equidigital number, since it uses as much as digits as its factorization.

1141667881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12827818.

The product of its digits is 64512, while the sum is 43.

The square root of 1141667881 is about 33788.5761907779. The cubic root of 1141667881 is about 1045.1531352241.

It can be divided in two parts, 11416 and 67881, that added together give a palindrome (79297).

The spelling of 1141667881 in words is "one billion, one hundred forty-one million, six hundred sixty-seven thousand, eight hundred eighty-one".