3120197657 has 2 divisors, whose sum is σ = 3120197658. Its totient is φ = 3120197656.

The previous prime is 3120197653. The next prime is 3120197677. The reversal of 3120197657 is 7567910213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3046598416 + 73599241 = 55196^2 + 8579^2 .

It is a cyclic number.

It is not a de Polignac number, because 3120197657 - 2² = 3120197653 is a prime.

It is not a weakly prime, because it can be changed into another prime (3120197653) 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, 1560098828 + 1560098829.

It is an arithmetic number, because the mean of its divisors is an integer number (1560098829).

Almost surely, 2^3120197657 is an apocalyptic number.

It is an amenable number.

3120197657 is a deficient number, since it is larger than the sum of its proper divisors (1).

3120197657 is an equidigital number, since it uses as much as digits as its factorization.

3120197657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 3120197657 is about 55858.7294610252. The cubic root of 3120197657 is about 1461.2595712212.

The spelling of 3120197657 in words is "three billion, one hundred twenty million, one hundred ninety-seven thousand, six hundred fifty-seven".