1131362158 has 4 divisors (see below), whose sum is σ = 1697043240. Its totient is φ = 565681078.

The previous prime is 1131362153. The next prime is 1131362171. The reversal of 1131362158 is 8512631311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8512631311 = 127 ⋅67028593.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131362153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282840538 + ... + 282840541.

It is an arithmetic number, because the mean of its divisors is an integer number (424260810).

Almost surely, 2^1131362158 is an apocalyptic number.

1131362158 is a deficient number, since it is larger than the sum of its proper divisors (565681082).

1131362158 is an equidigital number, since it uses as much as digits as its factorization.

1131362158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565681081.

The product of its digits is 4320, while the sum is 31.

The square root of 1131362158 is about 33635.7274040565. The cubic root of 1131362158 is about 1041.9987934749.

Adding to 1131362158 its reverse (8512631311), we get a palindrome (9643993469).

The spelling of 1131362158 in words is "one billion, one hundred thirty-one million, three hundred sixty-two thousand, one hundred fifty-eight".