2345403961 has 2 divisors, whose sum is σ = 2345403962. Its totient is φ = 2345403960.

The previous prime is 2345403959. The next prime is 2345404013. The reversal of 2345403961 is 1693045432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1852785936 + 492618025 = 43044^2 + 22195^2 .

It is a cyclic number.

It is not a de Polignac number, because 2345403961 - 2¹ = 2345403959 is a prime.

Together with 2345403959, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2345403961.

It is not a weakly prime, because it can be changed into another prime (2345403901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1172701980 + 1172701981.

It is an arithmetic number, because the mean of its divisors is an integer number (1172701981).

Almost surely, 2^2345403961 is an apocalyptic number.

It is an amenable number.

2345403961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2345403961 is an equidigital number, since it uses as much as digits as its factorization.

2345403961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 2345403961 is about 48429.3708507554. The cubic root of 2345403961 is about 1328.6355994876.

The spelling of 2345403961 in words is "two billion, three hundred forty-five million, four hundred three thousand, nine hundred sixty-one".