1131459444 has 72 divisors (see below), whose sum is σ = 2899522080. Its totient is φ = 371990592.

The previous prime is 1131459431. The next prime is 1131459457. The reversal of 1131459444 is 4449541311.

1131459444 is a `hidden beast` number, since 1 + 13 + 14 + 594 + 44 = 666.

It is an interprime number because it is at equal distance from previous prime (1131459431) and next prime (1131459457).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1131459399 and 1131459408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 865039 + ... + 866345.

It is an arithmetic number, because the mean of its divisors is an integer number (40271140).

Almost surely, 2^1131459444 is an apocalyptic number.

It is an amenable number.

1131459444 is an abundant number, since it is smaller than the sum of its proper divisors (1768062636).

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

1131459444 is a wasteful number, since it uses less digits than its factorization.

1131459444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629 (or 1624 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 1131459444 is about 33637.1735435664. The cubic root of 1131459444 is about 1042.0286598292.

The spelling of 1131459444 in words is "one billion, one hundred thirty-one million, four hundred fifty-nine thousand, four hundred forty-four".