1141253531 has 8 divisors (see below), whose sum is σ = 1245985200. Its totient is φ = 1036685440.

The previous prime is 1141253507. The next prime is 1141253543. The reversal of 1141253531 is 1353521411.

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

It is a cyclic number.

It is not a de Polignac number, because 1141253531 - 2²² = 1137059227 is a prime.

It is a super-2 number, since 2×1141253531² = 2604919244039935922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1141253531.

It is not an unprimeable number, because it can be changed into a prime (1141253591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26066 + ... + 54423.

It is an arithmetic number, because the mean of its divisors is an integer number (155748150).

Almost surely, 2^1141253531 is an apocalyptic number.

1141253531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1141253531 is a deficient number, since it is larger than the sum of its proper divisors (104731669).

1141253531 is a wasteful number, since it uses less digits than its factorization.

1141253531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81789.

The product of its digits is 1800, while the sum is 26.

The square root of 1141253531 is about 33782.4441241305. Note that the first 3 decimals coincide. The cubic root of 1141253531 is about 1045.0266794162.

Adding to 1141253531 its reverse (1353521411), we get a palindrome (2494774942).

The spelling of 1141253531 in words is "one billion, one hundred forty-one million, two hundred fifty-three thousand, five hundred thirty-one".