514665869 has 2 divisors, whose sum is σ = 514665870. Its totient is φ = 514665868.

The previous prime is 514665859. The next prime is 514665911. The reversal of 514665869 is 968566415.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 514609225 + 56644 = 22685^2 + 238^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-514665869 is a prime.

It is a super-2 number, since 2×514665869² = 529761913427050322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (514665859) 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, 257332934 + 257332935.

It is an arithmetic number, because the mean of its divisors is an integer number (257332935).

Almost surely, 2^514665869 is an apocalyptic number.

It is an amenable number.

514665869 is a deficient number, since it is larger than the sum of its proper divisors (1).

514665869 is an equidigital number, since it uses as much as digits as its factorization.

514665869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 50.

The square root of 514665869 is about 22686.2484558377. The cubic root of 514665869 is about 801.3860705611.

The spelling of 514665869 in words is "five hundred fourteen million, six hundred sixty-five thousand, eight hundred sixty-nine".