1096861901 has 2 divisors, whose sum is σ = 1096861902. Its totient is φ = 1096861900.

The previous prime is 1096861897. The next prime is 1096861903. The reversal of 1096861901 is 1091686901.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1015951876 + 80910025 = 31874^2 + 8995^2 .

It is an emirp because it is prime and its reverse (1091686901) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 1061989601 and 1069891601.

It is a cyclic number.

It is not a de Polignac number, because 1096861901 - 2² = 1096861897 is a prime.

Together with 1096861903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1096861903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548430950 + 548430951.

It is an arithmetic number, because the mean of its divisors is an integer number (548430951).

Almost surely, 2^1096861901 is an apocalyptic number.

It is an amenable number.

1096861901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1096861901 is an equidigital number, since it uses as much as digits as its factorization.

1096861901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 1096861901 is about 33118.9054921807. The cubic root of 1096861901 is about 1031.2975449839.

The spelling of 1096861901 in words is "one billion, ninety-six million, eight hundred sixty-one thousand, nine hundred one".