2355971 has 2 divisors, whose sum is σ = 2355972. Its totient is φ = 2355970.

The previous prime is 2355949. The next prime is 2355973. The reversal of 2355971 is 1795532.

2355971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2355971 - 2¹⁸ = 2093827 is a prime.

Together with 2355973, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2355973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1177985 + 1177986.

It is an arithmetic number, because the mean of its divisors is an integer number (1177986).

2^2355971 is an apocalyptic number.

2355971 is a deficient number, since it is larger than the sum of its proper divisors (1).

2355971 is an equidigital number, since it uses as much as digits as its factorization.

2355971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9450, while the sum is 32.

The square root of 2355971 is about 1534.9172616138. The cubic root of 2355971 is about 133.0627965842.

The spelling of 2355971 in words is "two million, three hundred fifty-five thousand, nine hundred seventy-one".