2901421 has 4 divisors (see below), whose sum is σ = 3001500. Its totient is φ = 2801344.

The previous prime is 2901419. The next prime is 2901463. The reversal of 2901421 is 1241092.

2901421 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.

It can be written as a sum of positive squares in 2 ways, for example, as 532900 + 2368521 = 730^2 + 1539^2 .

It is a cyclic number.

It is not a de Polignac number, because 2901421 - 2¹ = 2901419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2901401) 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, 49996 + ... + 50053.

It is an arithmetic number, because the mean of its divisors is an integer number (750375).

2^2901421 is an apocalyptic number.

It is an amenable number.

2901421 is a deficient number, since it is larger than the sum of its proper divisors (100079).

2901421 is a wasteful number, since it uses less digits than its factorization.

2901421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100078.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2901421 is about 1703.3558054617. The cubic root of 2901421 is about 142.6276029490.

It can be divided in two parts, 290 and 1421, that added together give a triangular number (1711 = T₅₈).

The spelling of 2901421 in words is "two million, nine hundred one thousand, four hundred twenty-one".