1131625475 has 6 divisors (see below), whose sum is σ = 1403215620. Its totient is φ = 905300360.

The previous prime is 1131625441. The next prime is 1131625483. The reversal of 1131625475 is 5745261311.

It is a happy number.

It is not a de Polignac number, because 1131625475 - 2⁸ = 1131625219 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22632485 + ... + 22632534.

It is an arithmetic number, because the mean of its divisors is an integer number (233869270).

Almost surely, 2^1131625475 is an apocalyptic number.

1131625475 is a deficient number, since it is larger than the sum of its proper divisors (271590145).

1131625475 is an equidigital number, since it uses as much as digits as its factorization.

1131625475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45265029 (or 45265024 counting only the distinct ones).

The product of its digits is 25200, while the sum is 35.

The square root of 1131625475 is about 33639.6414219890. The cubic root of 1131625475 is about 1042.0796266283.

Adding to 1131625475 its reverse (5745261311), we get a palindrome (6876886786).

The spelling of 1131625475 in words is "one billion, one hundred thirty-one million, six hundred twenty-five thousand, four hundred seventy-five".