514369981 has 2 divisors, whose sum is σ = 514369982. Its totient is φ = 514369980.

The previous prime is 514369909. The next prime is 514369987. The reversal of 514369981 is 189963415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 358344900 + 156025081 = 18930^2 + 12491^2 .

It is a cyclic number.

It is not a de Polignac number, because 514369981 - 2¹⁷ = 514238909 is a prime.

It is a super-2 number, since 2×514369981² = 529152954707880722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (514369987) 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, 257184990 + 257184991.

It is an arithmetic number, because the mean of its divisors is an integer number (257184991).

Almost surely, 2^514369981 is an apocalyptic number.

It is an amenable number.

514369981 is a deficient number, since it is larger than the sum of its proper divisors (1).

514369981 is an equidigital number, since it uses as much as digits as its factorization.

514369981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 46.

The square root of 514369981 is about 22679.7262108695. The cubic root of 514369981 is about 801.2324654154.

The spelling of 514369981 in words is "five hundred fourteen million, three hundred sixty-nine thousand, nine hundred eighty-one".