1961103097 has 2 divisors, whose sum is σ = 1961103098. Its totient is φ = 1961103096.

The previous prime is 1961103083. The next prime is 1961103127. The reversal of 1961103097 is 7903011691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1074790656 + 886312441 = 32784^2 + 29771^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1961103097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1961103797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 980551548 + 980551549.

It is an arithmetic number, because the mean of its divisors is an integer number (980551549).

Almost surely, 2^1961103097 is an apocalyptic number.

It is an amenable number.

1961103097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1961103097 is an equidigital number, since it uses as much as digits as its factorization.

1961103097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 1961103097 is about 44284.3437006805. The cubic root of 1961103097 is about 1251.6996818445.

The spelling of 1961103097 in words is "one billion, nine hundred sixty-one million, one hundred three thousand, ninety-seven".