1095619897 has 2 divisors, whose sum is σ = 1095619898. Its totient is φ = 1095619896.

The previous prime is 1095619883. The next prime is 1095619901. The reversal of 1095619897 is 7989165901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 992313001 + 103306896 = 31501^2 + 10164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1095619897 is a prime.

It is not a weakly prime, because it can be changed into another prime (1095619297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 547809948 + 547809949.

It is an arithmetic number, because the mean of its divisors is an integer number (547809949).

Almost surely, 2^1095619897 is an apocalyptic number.

It is an amenable number.

1095619897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1095619897 is an equidigital number, since it uses as much as digits as its factorization.

1095619897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 55.

The square root of 1095619897 is about 33100.1495011730. The cubic root of 1095619897 is about 1030.9081433540.

The spelling of 1095619897 in words is "one billion, ninety-five million, six hundred nineteen thousand, eight hundred ninety-seven".