2142461 has 4 divisors (see below), whose sum is σ = 2162592. Its totient is φ = 2122332.

The previous prime is 2142457. The next prime is 2142463. The reversal of 2142461 is 1642412.

2142461 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.

It is a cyclic number.

It is not a de Polignac number, because 2142461 - 2² = 2142457 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 (2142463) 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, 9905 + ... + 10118.

It is an arithmetic number, because the mean of its divisors is an integer number (540648).

2^2142461 is an apocalyptic number.

It is an amenable number.

2142461 is a deficient number, since it is larger than the sum of its proper divisors (20131).

2142461 is a wasteful number, since it uses less digits than its factorization.

2142461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20130.

The product of its digits is 384, while the sum is 20.

The square root of 2142461 is about 1463.7147946236. The cubic root of 2142461 is about 128.9152539153.

Adding to 2142461 its reverse (1642412), we get a palindrome (3784873).

The spelling of 2142461 in words is "two million, one hundred forty-two thousand, four hundred sixty-one".