1131404479 has 2 divisors, whose sum is σ = 1131404480. Its totient is φ = 1131404478.

The previous prime is 1131404453. The next prime is 1131404503. The reversal of 1131404479 is 9744041311.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1131404479 - 2⁵ = 1131404447 is a prime.

It is a super-2 number, since 2×1131404479² = 2560152190202522882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131474479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565702239 + 565702240.

It is an arithmetic number, because the mean of its divisors is an integer number (565702240).

Almost surely, 2^1131404479 is an apocalyptic number.

1131404479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131404479 is an equidigital number, since it uses as much as digits as its factorization.

1131404479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 1131404479 is about 33636.3565060189. The cubic root of 1131404479 is about 1042.0117860375.

The spelling of 1131404479 in words is "one billion, one hundred thirty-one million, four hundred four thousand, four hundred seventy-nine".