2129461 has 8 divisors (see below), whose sum is σ = 2222240. Its totient is φ = 2038608.

The previous prime is 2129447. The next prime is 2129473. The reversal of 2129461 is 1649212.

2129461 = T₃₃ + T₃₄ + ... + T₂₃₃.

2129461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2129461 - 2⁷ = 2129333 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 (2129401) 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 7 ways as a sum of consecutive naturals, for example, 2050 + ... + 2908.

It is an arithmetic number, because the mean of its divisors is an integer number (277780).

2^2129461 is an apocalyptic number.

It is an amenable number.

2129461 is a deficient number, since it is larger than the sum of its proper divisors (92779).

2129461 is an equidigital number, since it uses as much as digits as its factorization.

2129461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963.

The product of its digits is 864, while the sum is 25.

The square root of 2129461 is about 1459.2672818918. The cubic root of 2129461 is about 128.6539812575.

Subtracting from 2129461 its reverse (1649212), we obtain a square (480249 = 693²).

The spelling of 2129461 in words is "two million, one hundred twenty-nine thousand, four hundred sixty-one".