1131709488 has 120 divisors (see below), whose sum is σ = 3662609328. Its totient is φ = 298464768.

The previous prime is 1131709487. The next prime is 1131709519. The reversal of 1131709488 is 8849071311.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1131709487) 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 in 23 ways as a sum of consecutive naturals, for example, 12070 + ... + 49082.

Almost surely, 2^1131709488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131709488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1831304664).

1131709488 is an abundant number, since it is smaller than the sum of its proper divisors (2530899840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131709488 is a wasteful number, since it uses less digits than its factorization.

1131709488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37051 (or 37038 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 42.

The square root of 1131709488 is about 33640.8901190203. The cubic root of 1131709488 is about 1042.1054143326.

The spelling of 1131709488 in words is "one billion, one hundred thirty-one million, seven hundred nine thousand, four hundred eighty-eight".