1131597341 has 4 divisors (see below), whose sum is σ = 1293254112. Its totient is φ = 969940572.

The previous prime is 1131597293. The next prime is 1131597359. The reversal of 1131597341 is 1437951311.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 1131597341 - 2⁶ = 1131597277 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 (1131597391) 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, 80828375 + ... + 80828388.

It is an arithmetic number, because the mean of its divisors is an integer number (323313528).

Almost surely, 2^1131597341 is an apocalyptic number.

It is an amenable number.

1131597341 is a deficient number, since it is larger than the sum of its proper divisors (161656771).

1131597341 is an equidigital number, since it uses as much as digits as its factorization.

1131597341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161656770.

The product of its digits is 11340, while the sum is 35.

The square root of 1131597341 is about 33639.2232520313. The cubic root of 1131597341 is about 1042.0709906406.

The spelling of 1131597341 in words is "one billion, one hundred thirty-one million, five hundred ninety-seven thousand, three hundred forty-one".