2481421 has 2 divisors, whose sum is σ = 2481422. Its totient is φ = 2481420.

The previous prime is 2481389. The next prime is 2481433. The reversal of 2481421 is 1241842.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2292196 + 189225 = 1514^2 + 435^2 .

It is a cyclic number.

It is not a de Polignac number, because 2481421 - 2⁵ = 2481389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2481392 and 2481401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2481461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1240710 + 1240711.

It is an arithmetic number, because the mean of its divisors is an integer number (1240711).

2^2481421 is an apocalyptic number.

It is an amenable number.

2481421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2481421 is an equidigital number, since it uses as much as digits as its factorization.

2481421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 512, while the sum is 22.

The square root of 2481421 is about 1575.2526781440. The cubic root of 2481421 is about 135.3838367542.

The spelling of 2481421 in words is "two million, four hundred eighty-one thousand, four hundred twenty-one".