1150811197 has 2 divisors, whose sum is σ = 1150811198. Its totient is φ = 1150811196.

The previous prime is 1150811183. The next prime is 1150811257. The reversal of 1150811197 is 7911180511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 989165401 + 161645796 = 31451^2 + 12714^2 .

It is a cyclic number.

It is not a de Polignac number, because 1150811197 - 2¹⁵ = 1150778429 is a prime.

It is a super-2 number, since 2×1150811197² = 2648732822281145618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1150811117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575405598 + 575405599.

It is an arithmetic number, because the mean of its divisors is an integer number (575405599).

Almost surely, 2^1150811197 is an apocalyptic number.

It is an amenable number.

1150811197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1150811197 is an equidigital number, since it uses as much as digits as its factorization.

1150811197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 34.

The square root of 1150811197 is about 33923.6082544295. The cubic root of 1150811197 is about 1047.9358380610.

The spelling of 1150811197 in words is "one billion, one hundred fifty million, eight hundred eleven thousand, one hundred ninety-seven".