2135634140 has 24 divisors (see below), whose sum is σ = 4487430192. Its totient is φ = 853758720.

The previous prime is 2135634133. The next prime is 2135634167. The reversal of 2135634140 is 414365312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5495 + ... + 65585.

It is an arithmetic number, because the mean of its divisors is an integer number (186976258).

Almost surely, 2^2135634140 is an apocalyptic number.

2135634140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2135634140 is an abundant number, since it is smaller than the sum of its proper divisors (2351796052).

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

2135634140 is a wasteful number, since it uses less digits than its factorization.

2135634140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61877 (or 61875 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2135634140 is about 46212.9217860113. The cubic root of 2135634140 is about 1287.7818057853.

Adding to 2135634140 its reverse (414365312), we get a palindrome (2549999452).

The spelling of 2135634140 in words is "two billion, one hundred thirty-five million, six hundred thirty-four thousand, one hundred forty".