2135213136 has 200 divisors, whose sum is σ = 7092930944. Its totient is φ = 607461120.

The previous prime is 2135213123. The next prime is 2135213159. The reversal of 2135213136 is 6313125312.

2135213136 is a `hidden beast` number, since 2 + 1 + 3 + 521 + 3 + 136 = 666.

It is a super-2 number, since 2×2135213136² = 9118270272293908992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3383541 + ... + 3384171.

Almost surely, 2^2135213136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2135213136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3546465472).

2135213136 is an abundant number, since it is smaller than the sum of its proper divisors (4957717808).

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

2135213136 is a wasteful number, since it uses less digits than its factorization.

2135213136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031 (or 1016 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 2135213136 is about 46208.3665151669. The cubic root of 2135213136 is about 1287.6971787869.

Adding to 2135213136 its reverse (6313125312), we get a palindrome (8448338448).

The spelling of 2135213136 in words is "two billion, one hundred thirty-five million, two hundred thirteen thousand, one hundred thirty-six".