1141911361 has 4 divisors (see below), whose sum is σ = 1142092224. Its totient is φ = 1141730500.

The previous prime is 1141911317. The next prime is 1141911371. The reversal of 1141911361 is 1631191411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1631191411 = 6121 ⋅266491.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1141911361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1141911371) 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, 80605 + ... + 93706.

It is an arithmetic number, because the mean of its divisors is an integer number (285523056).

Almost surely, 2^1141911361 is an apocalyptic number.

It is an amenable number.

1141911361 is a deficient number, since it is larger than the sum of its proper divisors (180863).

1141911361 is an equidigital number, since it uses as much as digits as its factorization.

1141911361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180862.

The product of its digits is 648, while the sum is 28.

The square root of 1141911361 is about 33792.1789915951. The cubic root of 1141911361 is about 1045.2274288085.

The spelling of 1141911361 in words is "one billion, one hundred forty-one million, nine hundred eleven thousand, three hundred sixty-one".