246220081 has 4 divisors (see below), whose sum is σ = 249186672. Its totient is φ = 243253492.

The previous prime is 246220067. The next prime is 246220087. The reversal of 246220081 is 180022642.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 246220081 - 2⁹ = 246219569 is a prime.

It is a super-2 number, since 2×246220081² = 121248656575293122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (246220087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1483171 + ... + 1483336.

It is an arithmetic number, because the mean of its divisors is an integer number (62296668).

Almost surely, 2^246220081 is an apocalyptic number.

It is an amenable number.

246220081 is a deficient number, since it is larger than the sum of its proper divisors (2966591).

246220081 is an equidigital number, since it uses as much as digits as its factorization.

246220081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2966590.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 246220081 is about 15691.4014989102. The cubic root of 246220081 is about 626.7694548398.

The spelling of 246220081 in words is "two hundred forty-six million, two hundred twenty thousand, eighty-one".