1135517997 has 16 divisors (see below), whose sum is σ = 1568730240. Its totient is φ = 729742272.

The previous prime is 1135517969. The next prime is 1135518023. The reversal of 1135517997 is 7997155311.

It is not a de Polignac number, because 1135517997 - 2³⁰ = 61776173 is a prime.

It is a super-2 number, since 2×1135517997² = 2578802243021784018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135517927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46203 + ... + 66375.

It is an arithmetic number, because the mean of its divisors is an integer number (98045640).

Almost surely, 2^1135517997 is an apocalyptic number.

It is an amenable number.

1135517997 is a deficient number, since it is larger than the sum of its proper divisors (433212243).

1135517997 is a wasteful number, since it uses less digits than its factorization.

1135517997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20852.

The product of its digits is 297675, while the sum is 48.

The square root of 1135517997 is about 33697.4479300733. The cubic root of 1135517997 is about 1043.2730944635.

The spelling of 1135517997 in words is "one billion, one hundred thirty-five million, five hundred seventeen thousand, nine hundred ninety-seven".