1131653473 has 8 divisors (see below), whose sum is σ = 1165015400. Its totient is φ = 1098437760.

The previous prime is 1131653461. The next prime is 1131653483. The reversal of 1131653473 is 3743561311.

It can be written as a sum of positive squares in 4 ways, for example, as 22963264 + 1108690209 = 4792^2 + 33297^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1131653473 - 2⁵ = 1131653441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131653483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20748 + ... + 51901.

It is an arithmetic number, because the mean of its divisors is an integer number (145626925).

Almost surely, 2^1131653473 is an apocalyptic number.

It is an amenable number.

1131653473 is a deficient number, since it is larger than the sum of its proper divisors (33361927).

1131653473 is an equidigital number, since it uses as much as digits as its factorization.

1131653473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73107.

The product of its digits is 22680, while the sum is 34.

The square root of 1131653473 is about 33640.0575653491. The cubic root of 1131653473 is about 1042.0882207275.

The spelling of 1131653473 in words is "one billion, one hundred thirty-one million, six hundred fifty-three thousand, four hundred seventy-three".