1131474637 has 2 divisors, whose sum is σ = 1131474638. Its totient is φ = 1131474636.

The previous prime is 1131474607. The next prime is 1131474647. The reversal of 1131474637 is 7364741311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 930799081 + 200675556 = 30509^2 + 14166^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131474637 - 2¹⁹ = 1130950349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1131474596 and 1131474605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131474607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565737318 + 565737319.

It is an arithmetic number, because the mean of its divisors is an integer number (565737319).

Almost surely, 2^1131474637 is an apocalyptic number.

It is an amenable number.

1131474637 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131474637 is an equidigital number, since it uses as much as digits as its factorization.

1131474637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 37.

The square root of 1131474637 is about 33637.3993792624. The cubic root of 1131474637 is about 1042.0333238557.

The spelling of 1131474637 in words is "one billion, one hundred thirty-one million, four hundred seventy-four thousand, six hundred thirty-seven".