2135144154 has 64 divisors (see below), whose sum is σ = 5027904000. Its totient is φ = 595926720.

The previous prime is 2135144147. The next prime is 2135144159. The reversal of 2135144154 is 4514415312.

It is not an unprimeable number, because it can be changed into a prime (2135144159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 425649 + ... + 430635.

It is an arithmetic number, because the mean of its divisors is an integer number (78561000).

Almost surely, 2^2135144154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2135144154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2513952000).

2135144154 is an abundant number, since it is smaller than the sum of its proper divisors (2892759846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2135144154 is a wasteful number, since it uses less digits than its factorization.

2135144154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5515.

The product of its digits is 9600, while the sum is 30.

The square root of 2135144154 is about 46207.6200858690. The cubic root of 2135144154 is about 1287.6833114931.

Adding to 2135144154 its reverse (4514415312), we get a palindrome (6649559466).

The spelling of 2135144154 in words is "two billion, one hundred thirty-five million, one hundred forty-four thousand, one hundred fifty-four".