1141351531 has 4 divisors (see below), whose sum is σ = 1141601272. Its totient is φ = 1141101792.

The previous prime is 1141351507. The next prime is 1141351571. The reversal of 1141351531 is 1351531411.

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 1141351531 - 2⁹ = 1141351019 is a prime.

It is a super-2 number, since 2×1141351531² = 2605366634632087922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1141351496 and 1141351505.

It is not an unprimeable number, because it can be changed into a prime (1141351571) 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, 117885 + ... + 127198.

It is an arithmetic number, because the mean of its divisors is an integer number (285400318).

Almost surely, 2^1141351531 is an apocalyptic number.

1141351531 is a deficient number, since it is larger than the sum of its proper divisors (249741).

1141351531 is an equidigital number, since it uses as much as digits as its factorization.

1141351531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249740.

The product of its digits is 900, while the sum is 25.

The square root of 1141351531 is about 33783.8945505103. The cubic root of 1141351531 is about 1045.0565908778.

Adding to 1141351531 its reverse (1351531411), we get a palindrome (2492882942).

The spelling of 1141351531 in words is "one billion, one hundred forty-one million, three hundred fifty-one thousand, five hundred thirty-one".