2346643121 has 2 divisors, whose sum is σ = 2346643122. Its totient is φ = 2346643120.

The previous prime is 2346643073. The next prime is 2346643139. The reversal of 2346643121 is 1213466432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2141838400 + 204804721 = 46280^2 + 14311^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2346643121 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2346646121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1173321560 + 1173321561.

It is an arithmetic number, because the mean of its divisors is an integer number (1173321561).

Almost surely, 2^2346643121 is an apocalyptic number.

It is an amenable number.

2346643121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2346643121 is an equidigital number, since it uses as much as digits as its factorization.

2346643121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 32.

The square root of 2346643121 is about 48442.1626375206. The cubic root of 2346643121 is about 1328.8695467099.

The spelling of 2346643121 in words is "two billion, three hundred forty-six million, six hundred forty-three thousand, one hundred twenty-one".