2031541 has 2 divisors, whose sum is σ = 2031542. Its totient is φ = 2031540.

The previous prime is 2031493. The next prime is 2031563. The reversal of 2031541 is 1451302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1274641 + 756900 = 1129^2 + 870^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031541 - 2¹³ = 2023349 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2031571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015770 + 1015771.

It is an arithmetic number, because the mean of its divisors is an integer number (1015771).

2^2031541 is an apocalyptic number.

It is an amenable number.

2031541 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031541 is an equidigital number, since it uses as much as digits as its factorization.

2031541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2031541 is about 1425.3213672713. The cubic root of 2031541 is about 126.6509729710.

Adding to 2031541 its reverse (1451302), we get a palindrome (3482843).

The spelling of 2031541 in words is "two million, thirty-one thousand, five hundred forty-one".