2031257 has 2 divisors, whose sum is σ = 2031258. Its totient is φ = 2031256.

The previous prime is 2031251. The next prime is 2031269. The reversal of 2031257 is 7521302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2027776 + 3481 = 1424^2 + 59^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031257 - 2¹² = 2027161 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2031251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015628 + 1015629.

It is an arithmetic number, because the mean of its divisors is an integer number (1015629).

2^2031257 is an apocalyptic number.

It is an amenable number.

2031257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031257 is an equidigital number, since it uses as much as digits as its factorization.

2031257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 2031257 is about 1425.2217371343. The cubic root of 2031257 is about 126.6450709567.

Adding to 2031257 its reverse (7521302), we get a palindrome (9552559).

The spelling of 2031257 in words is "two million, thirty-one thousand, two hundred fifty-seven".