1131153434 has 4 divisors (see below), whose sum is σ = 1696730154. Its totient is φ = 565576716.

The previous prime is 1131153433. The next prime is 1131153437. The reversal of 1131153434 is 4343511311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4343511311 = 1789 ⋅2427899.

It can be written as a sum of positive squares in only one way, i.e., 642876025 + 488277409 = 25355^2 + 22097^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1131153431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282788357 + ... + 282788360.

Almost surely, 2^1131153434 is an apocalyptic number.

1131153434 is a deficient number, since it is larger than the sum of its proper divisors (565576720).

1131153434 is an equidigital number, since it uses as much as digits as its factorization.

1131153434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565576719.

The product of its digits is 2160, while the sum is 26.

The square root of 1131153434 is about 33632.6245481972. The cubic root of 1131153434 is about 1041.9347103898.

Adding to 1131153434 its reverse (4343511311), we get a palindrome (5474664745).

The spelling of 1131153434 in words is "one billion, one hundred thirty-one million, one hundred fifty-three thousand, four hundred thirty-four".