1135947697 has 8 divisors (see below), whose sum is σ = 1148533736. Its totient is φ = 1123379712.

The previous prime is 1135947689. The next prime is 1135947721. The reversal of 1135947697 is 7967495311.

It can be written as a sum of positive squares in 4 ways, for example, as 23658496 + 1112289201 = 4864^2 + 33351^2 .

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 1135947697 - 2³ = 1135947689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1135947607) 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 in 7 ways as a sum of consecutive naturals, for example, 151243 + ... + 158575.

It is an arithmetic number, because the mean of its divisors is an integer number (143566717).

Almost surely, 2^1135947697 is an apocalyptic number.

It is an amenable number.

1135947697 is a deficient number, since it is larger than the sum of its proper divisors (12586039).

1135947697 is an equidigital number, since it uses as much as digits as its factorization.

1135947697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9027.

The product of its digits is 1428840, while the sum is 52.

The square root of 1135947697 is about 33703.8231807610. The cubic root of 1135947697 is about 1043.4046755023.

The spelling of 1135947697 in words is "one billion, one hundred thirty-five million, nine hundred forty-seven thousand, six hundred ninety-seven".