2398965161 has 2 divisors, whose sum is σ = 2398965162. Its totient is φ = 2398965160.

The previous prime is 2398965119. The next prime is 2398965203. The reversal of 2398965161 is 1615698932.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (2398965119) and next prime (2398965203).

It can be written as a sum of positive squares in only one way, i.e., 2356519936 + 42445225 = 48544^2 + 6515^2 .

It is a cyclic number.

It is not a de Polignac number, because 2398965161 - 2⁶ = 2398965097 is a prime.

It is not a weakly prime, because it can be changed into another prime (2398961161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1199482580 + 1199482581.

It is an arithmetic number, because the mean of its divisors is an integer number (1199482581).

Almost surely, 2^2398965161 is an apocalyptic number.

It is an amenable number.

2398965161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2398965161 is an equidigital number, since it uses as much as digits as its factorization.

2398965161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 50.

The square root of 2398965161 is about 48979.2319355867. The cubic root of 2398965161 is about 1338.6734404653.

The spelling of 2398965161 in words is "two billion, three hundred ninety-eight million, nine hundred sixty-five thousand, one hundred sixty-one".