514540409 has 2 divisors, whose sum is σ = 514540410. Its totient is φ = 514540408.

The previous prime is 514540393. The next prime is 514540531. The reversal of 514540409 is 904045415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 497959225 + 16581184 = 22315^2 + 4072^2 .

It is a cyclic number.

It is not a de Polignac number, because 514540409 - 2⁴ = 514540393 is a prime.

It is not a weakly prime, because it can be changed into another prime (514540009) 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, 257270204 + 257270205.

It is an arithmetic number, because the mean of its divisors is an integer number (257270205).

Almost surely, 2^514540409 is an apocalyptic number.

It is an amenable number.

514540409 is a deficient number, since it is larger than the sum of its proper divisors (1).

514540409 is an equidigital number, since it uses as much as digits as its factorization.

514540409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 514540409 is about 22683.4831760909. The cubic root of 514540409 is about 801.3209473596.

It can be divided in two parts, 5145 and 40409, that added together give a palindrome (45554).

The spelling of 514540409 in words is "five hundred fourteen million, five hundred forty thousand, four hundred nine".