1141740287 has 4 divisors (see below), whose sum is σ = 1150730496. Its totient is φ = 1132750080.

The previous prime is 1141740239. The next prime is 1141740289. The reversal of 1141740287 is 7820471411.

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 1141740287 - 2⁸ = 1141740031 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 (1141740289) 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, 4494914 + ... + 4495167.

It is an arithmetic number, because the mean of its divisors is an integer number (287682624).

Almost surely, 2^1141740287 is an apocalyptic number.

1141740287 is a deficient number, since it is larger than the sum of its proper divisors (8990209).

1141740287 is an equidigital number, since it uses as much as digits as its factorization.

1141740287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8990208.

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 1141740287 is about 33789.6476305983. The cubic root of 1141740287 is about 1045.1752297286.

The spelling of 1141740287 in words is "one billion, one hundred forty-one million, seven hundred forty thousand, two hundred eighty-seven".