2345257 has 2 divisors, whose sum is σ = 2345258. Its totient is φ = 2345256.

The previous prime is 2345249. The next prime is 2345261. The reversal of 2345257 is 7525432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2343961 + 1296 = 1531^2 + 36^2 .

It is a cyclic number.

It is not a de Polignac number, because 2345257 - 2³ = 2345249 is a prime.

It is not a weakly prime, because it can be changed into another prime (2345297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1172628 + 1172629.

It is an arithmetic number, because the mean of its divisors is an integer number (1172629).

2^2345257 is an apocalyptic number.

It is an amenable number.

2345257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2345257 is an equidigital number, since it uses as much as digits as its factorization.

2345257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 28.

The square root of 2345257 is about 1531.4231942869. The cubic root of 2345257 is about 132.8607848519.

The spelling of 2345257 in words is "two million, three hundred forty-five thousand, two hundred fifty-seven".