1131000579 has 24 divisors (see below), whose sum is σ = 1662216192. Its totient is φ = 740922480.

The previous prime is 1131000557. The next prime is 1131000583. The reversal of 1131000579 is 9750001311.

It is a happy number.

It is not a de Polignac number, because 1131000579 - 2¹² = 1130996483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131000589) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138714 + ... + 146640.

It is an arithmetic number, because the mean of its divisors is an integer number (69259008).

Almost surely, 2^1131000579 is an apocalyptic number.

1131000579 is a deficient number, since it is larger than the sum of its proper divisors (531215613).

1131000579 is a wasteful number, since it uses less digits than its factorization.

1131000579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8207 (or 8204 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 27.

The square root of 1131000579 is about 33630.3520498968. The cubic root of 1131000579 is about 1041.8877753764.

The spelling of 1131000579 in words is "one billion, one hundred thirty-one million, five hundred seventy-nine", and thus it is an aban number.