514540991 has 2 divisors, whose sum is σ = 514540992. Its totient is φ = 514540990.

The previous prime is 514540933. The next prime is 514541009. The reversal of 514540991 is 199045415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 514540991 - 2¹⁴ = 514524607 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 (514500991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257270495 + 257270496.

It is an arithmetic number, because the mean of its divisors is an integer number (257270496).

Almost surely, 2^514540991 is an apocalyptic number.

514540991 is a deficient number, since it is larger than the sum of its proper divisors (1).

514540991 is an equidigital number, since it uses as much as digits as its factorization.

514540991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 514540991 is about 22683.4960048049. The cubic root of 514540991 is about 801.3212494859.

The spelling of 514540991 in words is "five hundred fourteen million, five hundred forty thousand, nine hundred ninety-one".