2420161 has 4 divisors (see below), whose sum is σ = 2433024. Its totient is φ = 2407300.

The previous prime is 2420123. The next prime is 2420167. The reversal of 2420161 is 1610242.

2420161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1610242 = 2 ⋅805121.

It is a cyclic number.

It is not a de Polignac number, because 2420161 - 2¹⁵ = 2387393 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6145 + ... + 6526.

It is an arithmetic number, because the mean of its divisors is an integer number (608256).

2^2420161 is an apocalyptic number.

It is an amenable number.

2420161 is a deficient number, since it is larger than the sum of its proper divisors (12863).

2420161 is a wasteful number, since it uses less digits than its factorization.

2420161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12862.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2420161 is about 1555.6866651097. The cubic root of 2420161 is about 134.2604461608.

The spelling of 2420161 in words is "two million, four hundred twenty thousand, one hundred sixty-one".