1135871197 has 2 divisors, whose sum is σ = 1135871198. Its totient is φ = 1135871196.

The previous prime is 1135871189. The next prime is 1135871207. The reversal of 1135871197 is 7911785311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 780699481 + 355171716 = 27941^2 + 18846^2 .

It is a cyclic number.

It is not a de Polignac number, because 1135871197 - 2³ = 1135871189 is a prime.

It is a super-3 number, since 3×1135871197³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1135871497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567935598 + 567935599.

It is an arithmetic number, because the mean of its divisors is an integer number (567935599).

Almost surely, 2^1135871197 is an apocalyptic number.

It is an amenable number.

1135871197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1135871197 is an equidigital number, since it uses as much as digits as its factorization.

1135871197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 43.

The square root of 1135871197 is about 33702.6882755664. The cubic root of 1135871197 is about 1043.3812524023.

The spelling of 1135871197 in words is "one billion, one hundred thirty-five million, eight hundred seventy-one thousand, one hundred ninety-seven".