2140135 has 4 divisors (see below), whose sum is σ = 2568168. Its totient is φ = 1712104.

The previous prime is 2140129. The next prime is 2140139. The reversal of 2140135 is 5310412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2140135 - 2⁷ = 2140007 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 (2140139) 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, 214009 + ... + 214018.

It is an arithmetic number, because the mean of its divisors is an integer number (642042).

2^2140135 is an apocalyptic number.

2140135 is a deficient number, since it is larger than the sum of its proper divisors (428033).

2140135 is an equidigital number, since it uses as much as digits as its factorization.

2140135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428032.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2140135 is about 1462.9200251552. The cubic root of 2140135 is about 128.8685839937.

Adding to 2140135 its reverse (5310412), we get a palindrome (7450547).

The spelling of 2140135 in words is "two million, one hundred forty thousand, one hundred thirty-five".