2133405 has 16 divisors (see below), whose sum is σ = 3792960. Its totient is φ = 1137744.

The previous prime is 2133403. The next prime is 2133407. The reversal of 2133405 is 5043312.

It is an interprime number because it is at equal distance from previous prime (2133403) and next prime (2133407).

It is not a de Polignac number, because 2133405 - 2¹ = 2133403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7767 + ... + 8036.

It is an arithmetic number, because the mean of its divisors is an integer number (237060).

2^2133405 is an apocalyptic number.

It is an amenable number.

2133405 is a deficient number, since it is larger than the sum of its proper divisors (1659555).

2133405 is a wasteful number, since it uses less digits than its factorization.

2133405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15817 (or 15811 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 2133405 is about 1460.6180198806. The cubic root of 2133405 is about 128.7333594606.

Adding to 2133405 its reverse (5043312), we get a palindrome (7176717).

The spelling of 2133405 in words is "two million, one hundred thirty-three thousand, four hundred five".