264949019 has 2 divisors, whose sum is σ = 264949020. Its totient is φ = 264949018.

The previous prime is 264948991. The next prime is 264949037. The reversal of 264949019 is 910949462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 264949019 - 2¹² = 264944923 is a prime.

It is a super-2 number, since 2×264949019² = 140395965338124722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (264949039) 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, 132474509 + 132474510.

It is an arithmetic number, because the mean of its divisors is an integer number (132474510).

Almost surely, 2^264949019 is an apocalyptic number.

264949019 is a deficient number, since it is larger than the sum of its proper divisors (1).

264949019 is an equidigital number, since it uses as much as digits as its factorization.

264949019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 264949019 is about 16277.2546518140. The cubic root of 264949019 is about 642.2746363991.

The spelling of 264949019 in words is "two hundred sixty-four million, nine hundred forty-nine thousand, nineteen".