246381561 has 16 divisors (see below), whose sum is σ = 386481600. Its totient is φ = 154592064.

The previous prime is 246381523. The next prime is 246381563. The reversal of 246381561 is 165183642.

It is a happy number.

246381561 is a `hidden beast` number, since 2 + 4 + 638 + 15 + 6 + 1 = 666.

It is not a de Polignac number, because 246381561 - 2⁹ = 246381049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (246381563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267931 + ... + 268848.

It is an arithmetic number, because the mean of its divisors is an integer number (24155100).

Almost surely, 2^246381561 is an apocalyptic number.

It is an amenable number.

246381561 is a deficient number, since it is larger than the sum of its proper divisors (140100039).

246381561 is a wasteful number, since it uses less digits than its factorization.

246381561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536805 (or 536799 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 246381561 is about 15696.5461487551. The cubic root of 246381561 is about 626.9064442266.

The spelling of 246381561 in words is "two hundred forty-six million, three hundred eighty-one thousand, five hundred sixty-one".