514431389 has 2 divisors, whose sum is σ = 514431390. Its totient is φ = 514431388.

The previous prime is 514431371. The next prime is 514431413. The reversal of 514431389 is 983134415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 397683364 + 116748025 = 19942^2 + 10805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-514431389 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (514431349) 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, 257215694 + 257215695.

It is an arithmetic number, because the mean of its divisors is an integer number (257215695).

Almost surely, 2^514431389 is an apocalyptic number.

It is an amenable number.

514431389 is a deficient number, since it is larger than the sum of its proper divisors (1).

514431389 is an equidigital number, since it uses as much as digits as its factorization.

514431389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 514431389 is about 22681.0799786959. The cubic root of 514431389 is about 801.2643491613.

The spelling of 514431389 in words is "five hundred fourteen million, four hundred thirty-one thousand, three hundred eighty-nine".