1131207575 has 12 divisors (see below), whose sum is σ = 1416588648. Its totient is φ = 896004000.

The previous prime is 1131207569. The next prime is 1131207587. The reversal of 1131207575 is 5757021311.

1131207575 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1131207575 - 2¹⁰ = 1131206551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221477 + ... + 226526.

It is an arithmetic number, because the mean of its divisors is an integer number (118049054).

Almost surely, 2^1131207575 is an apocalyptic number.

1131207575 is a deficient number, since it is larger than the sum of its proper divisors (285381073).

1131207575 is a wasteful number, since it uses less digits than its factorization.

1131207575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448114 (or 448109 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 32.

The square root of 1131207575 is about 33633.4294266880. The cubic root of 1131207575 is about 1041.9513336835.

Adding to 1131207575 its reverse (5757021311), we get a palindrome (6888228886).

The spelling of 1131207575 in words is "one billion, one hundred thirty-one million, two hundred seven thousand, five hundred seventy-five".