2135240536 has 96 divisors (see below), whose sum is σ = 4903390800. Its totient is φ = 864864000.

The previous prime is 2135240473. The next prime is 2135240561. The reversal of 2135240536 is 6350425312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2135240498 and 2135240507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 362011 + ... + 367861.

Almost surely, 2^2135240536 is an apocalyptic number.

2135240536 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2135240536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2451695400).

2135240536 is an abundant number, since it is smaller than the sum of its proper divisors (2768150264).

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

2135240536 is a wasteful number, since it uses less digits than its factorization.

2135240536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5921 (or 5906 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 2135240536 is about 46208.6629973212. The cubic root of 2135240536 is about 1287.7026868634.

Adding to 2135240536 its reverse (6350425312), we get a palindrome (8485665848).

The spelling of 2135240536 in words is "two billion, one hundred thirty-five million, two hundred forty thousand, five hundred thirty-six".