246642901 has 2 divisors, whose sum is σ = 246642902. Its totient is φ = 246642900.

The previous prime is 246642899. The next prime is 246642923. The reversal of 246642901 is 109246642.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196728676 + 49914225 = 14026^2 + 7065^2 .

It is a cyclic number.

It is not a de Polignac number, because 246642901 - 2¹ = 246642899 is a prime.

It is a super-2 number, since 2×246642901² = 121665441227391602, which contains 22 as substring.

Together with 246642899, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (246642601) 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, 123321450 + 123321451.

It is an arithmetic number, because the mean of its divisors is an integer number (123321451).

Almost surely, 2^246642901 is an apocalyptic number.

It is an amenable number.

246642901 is a deficient number, since it is larger than the sum of its proper divisors (1).

246642901 is an equidigital number, since it uses as much as digits as its factorization.

246642901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 246642901 is about 15704.8687036855. The cubic root of 246642901 is about 627.1280217343.

The spelling of 246642901 in words is "two hundred forty-six million, six hundred forty-two thousand, nine hundred one".