1131553883 has 4 divisors (see below), whose sum is σ = 1132830480. Its totient is φ = 1130277288.

The previous prime is 1131553859. The next prime is 1131553903. The reversal of 1131553883 is 3883551311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3883551311 = 23 ⋅168850057.

It is a cyclic number.

It is not a de Polignac number, because 1131553883 - 2¹⁴ = 1131537499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131553853) 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, 636968 + ... + 638741.

It is an arithmetic number, because the mean of its divisors is an integer number (283207620).

Almost surely, 2^1131553883 is an apocalyptic number.

1131553883 is a deficient number, since it is larger than the sum of its proper divisors (1276597).

1131553883 is an equidigital number, since it uses as much as digits as its factorization.

1131553883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276596.

The product of its digits is 43200, while the sum is 38.

The square root of 1131553883 is about 33638.5773034473. The cubic root of 1131553883 is about 1042.0576505300.

The spelling of 1131553883 in words is "one billion, one hundred thirty-one million, five hundred fifty-three thousand, eight hundred eighty-three".