1151105897 has 2 divisors, whose sum is σ = 1151105898. Its totient is φ = 1151105896.

The previous prime is 1151105821. The next prime is 1151105911. The reversal of 1151105897 is 7985011511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 986650921 + 164454976 = 31411^2 + 12824^2 .

It is a cyclic number.

It is not a de Polignac number, because 1151105897 - 2²⁴ = 1134328681 is a prime.

It is a super-2 number, since 2×1151105897² = 2650089572216349218, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1151105897.

It is not a weakly prime, because it can be changed into another prime (1151105297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575552948 + 575552949.

It is an arithmetic number, because the mean of its divisors is an integer number (575552949).

Almost surely, 2^1151105897 is an apocalyptic number.

It is an amenable number.

1151105897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151105897 is an equidigital number, since it uses as much as digits as its factorization.

1151105897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 38.

The square root of 1151105897 is about 33927.9515591496. The cubic root of 1151105897 is about 1048.0252823111.

The spelling of 1151105897 in words is "one billion, one hundred fifty-one million, one hundred five thousand, eight hundred ninety-seven".