1197165031 has 2 divisors, whose sum is σ = 1197165032. Its totient is φ = 1197165030.

The previous prime is 1197165029. The next prime is 1197165043. The reversal of 1197165031 is 1305617911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1197165031 - 2¹ = 1197165029 is a prime.

It is a super-2 number, since 2×1197165031² = 2866408222898461922, which contains 22 as substring.

Together with 1197165029, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1197165061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598582515 + 598582516.

It is an arithmetic number, because the mean of its divisors is an integer number (598582516).

Almost surely, 2^1197165031 is an apocalyptic number.

1197165031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1197165031 is an equidigital number, since it uses as much as digits as its factorization.

1197165031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 1197165031 is about 34600.0727022358. The cubic root of 1197165031 is about 1061.8210748438.

The spelling of 1197165031 in words is "one billion, one hundred ninety-seven million, one hundred sixty-five thousand, thirty-one".