1141249786 has 8 divisors (see below), whose sum is σ = 1712792340. Its totient is φ = 570319008.

The previous prime is 1141249783. The next prime is 1141249787. The reversal of 1141249786 is 6879421411.

It can be written as a sum of positive squares in 2 ways, for example, as 1132659025 + 8590761 = 33655^2 + 2931^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1141249783) 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, 148251 + ... + 155758.

Almost surely, 2^1141249786 is an apocalyptic number.

1141249786 is a deficient number, since it is larger than the sum of its proper divisors (571542554).

1141249786 is a wasteful number, since it uses less digits than its factorization.

1141249786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305888.

The product of its digits is 96768, while the sum is 43.

The square root of 1141249786 is about 33782.3886958871. The cubic root of 1141249786 is about 1045.0255363371.

The spelling of 1141249786 in words is "one billion, one hundred forty-one million, two hundred forty-nine thousand, seven hundred eighty-six".