2133401 has 4 divisors (see below), whose sum is σ = 2136372. Its totient is φ = 2130432.

The previous prime is 2133379. The next prime is 2133403. The reversal of 2133401 is 1043312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 313600 + 1819801 = 560^2 + 1349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2133401 is a prime.

It is an Ulam number.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 341 + ... + 2093.

It is an arithmetic number, because the mean of its divisors is an integer number (534093).

2^2133401 is an apocalyptic number.

It is an amenable number.

2133401 is a deficient number, since it is larger than the sum of its proper divisors (2971).

2133401 is a wasteful number, since it uses less digits than its factorization.

2133401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2133401 is about 1460.6166505966. The cubic root of 2133401 is about 128.7332790049.

Adding to 2133401 its reverse (1043312), we get a palindrome (3176713).

The spelling of 2133401 in words is "two million, one hundred thirty-three thousand, four hundred one".