1131250888 has 8 divisors (see below), whose sum is σ = 2121095430. Its totient is φ = 565625440.

The previous prime is 1131250859. The next prime is 1131250889. The reversal of 1131250888 is 8880521311.

It can be written as a sum of positive squares in only one way, i.e., 1115426404 + 15824484 = 33398^2 + 3978^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1131250889) 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 as a sum of consecutive naturals, namely, 70703173 + ... + 70703188.

Almost surely, 2^1131250888 is an apocalyptic number.

It is an amenable number.

1131250888 is a deficient number, since it is larger than the sum of its proper divisors (989844542).

1131250888 is a wasteful number, since it uses less digits than its factorization.

1131250888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141406367 (or 141406363 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 37.

The square root of 1131250888 is about 33634.0733185857. The cubic root of 1131250888 is about 1041.9646319979.

The spelling of 1131250888 in words is "one billion, one hundred thirty-one million, two hundred fifty thousand, eight hundred eighty-eight".