2153120135 has 4 divisors (see below), whose sum is σ = 2583744168. Its totient is φ = 1722496104.

The previous prime is 2153120131. The next prime is 2153120141. The reversal of 2153120135 is 5310213512.

It is a happy number.

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 2153120135 - 2² = 2153120131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2153120135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153120131) 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, 215312009 + ... + 215312018.

It is an arithmetic number, because the mean of its divisors is an integer number (645936042).

Almost surely, 2^2153120135 is an apocalyptic number.

2153120135 is a deficient number, since it is larger than the sum of its proper divisors (430624033).

2153120135 is an equidigital number, since it uses as much as digits as its factorization.

2153120135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430624032.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 2153120135 is about 46401.7255605866. The cubic root of 2153120135 is about 1291.2869265573.

Adding to 2153120135 its reverse (5310213512), we get a palindrome (7463333647).

The spelling of 2153120135 in words is "two billion, one hundred fifty-three million, one hundred twenty thousand, one hundred thirty-five".