2031493 has 2 divisors, whose sum is σ = 2031494. Its totient is φ = 2031492.

The previous prime is 2031487. The next prime is 2031541. The reversal of 2031493 is 3941302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2022084 + 9409 = 1422^2 + 97^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031493 - 2⁹ = 2030981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2031443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015746 + 1015747.

It is an arithmetic number, because the mean of its divisors is an integer number (1015747).

2^2031493 is an apocalyptic number.

It is an amenable number.

2031493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031493 is an equidigital number, since it uses as much as digits as its factorization.

2031493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 2031493 is about 1425.3045288639. The cubic root of 2031493 is about 126.6499754861.

Adding to 2031493 its reverse (3941302), we get a palindrome (5972795).

It can be divided in two parts, 20 and 31493, that added together give a palindrome (31513).

The spelling of 2031493 in words is "two million, thirty-one thousand, four hundred ninety-three".