2453861 has 2 divisors, whose sum is σ = 2453862. Its totient is φ = 2453860.

The previous prime is 2453837. The next prime is 2453873. The reversal of 2453861 is 1683542.

2453861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1705636 + 748225 = 1306^2 + 865^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2453861 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2453821) 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 as a sum of consecutive naturals, namely, 1226930 + 1226931.

It is an arithmetic number, because the mean of its divisors is an integer number (1226931).

2^2453861 is an apocalyptic number.

It is an amenable number.

2453861 is a deficient number, since it is larger than the sum of its proper divisors (1).

2453861 is an equidigital number, since it uses as much as digits as its factorization.

2453861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 29.

The square root of 2453861 is about 1566.4804499259. The cubic root of 2453861 is about 134.8807543262.

The spelling of 2453861 in words is "two million, four hundred fifty-three thousand, eight hundred sixty-one".