2141405 has 32 divisors (see below), whose sum is σ = 3214080. Its totient is φ = 1336320.

The previous prime is 2141401. The next prime is 2141407. The reversal of 2141405 is 5041412.

2141405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2141405 - 2² = 2141401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2141401) 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 31 ways as a sum of consecutive naturals, for example, 35075 + ... + 35135.

It is an arithmetic number, because the mean of its divisors is an integer number (100440).

2^2141405 is an apocalyptic number.

It is an amenable number.

2141405 is a deficient number, since it is larger than the sum of its proper divisors (1072675).

2141405 is a wasteful number, since it uses less digits than its factorization.

2141405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 2141405 is about 1463.3540241514. The cubic root of 2141405 is about 128.8940700399.

Adding to 2141405 its reverse (5041412), we get a palindrome (7182817).

The spelling of 2141405 in words is "two million, one hundred forty-one thousand, four hundred five".