1141133251 has 4 divisors (see below), whose sum is σ = 1141516504. Its totient is φ = 1140750000.

The previous prime is 1141133221. The next prime is 1141133261. The reversal of 1141133251 is 1523311411.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1141133251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1141133221) 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, 187125 + ... + 193126.

It is an arithmetic number, because the mean of its divisors is an integer number (285379126).

Almost surely, 2^1141133251 is an apocalyptic number.

1141133251 is a deficient number, since it is larger than the sum of its proper divisors (383253).

1141133251 is an equidigital number, since it uses as much as digits as its factorization.

1141133251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383252.

The product of its digits is 360, while the sum is 22.

The square root of 1141133251 is about 33780.6638626301. The cubic root of 1141133251 is about 1044.9899653348.

Adding to 1141133251 its reverse (1523311411), we get a palindrome (2664444662).

The spelling of 1141133251 in words is "one billion, one hundred forty-one million, one hundred thirty-three thousand, two hundred fifty-one".