2136181530 has 64 divisors (see below), whose sum is σ = 5919701760. Its totient is φ = 483231744.

The previous prime is 2136181507. The next prime is 2136181543. The reversal of 2136181530 is 351816312.

It is a super-2 number, since 2×2136181530² = 9126543058226281800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32065 + ... + 72804.

It is an arithmetic number, because the mean of its divisors is an integer number (92495340).

Almost surely, 2^2136181530 is an apocalyptic number.

2136181530 is an abundant number, since it is smaller than the sum of its proper divisors (3783520230).

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

2136181530 is a wasteful number, since it uses less digits than its factorization.

2136181530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104983.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 2136181530 is about 46218.8438842860. The cubic root of 2136181530 is about 1287.8918212996.

Adding to 2136181530 its reverse (351816312), we get a palindrome (2487997842).

The spelling of 2136181530 in words is "two billion, one hundred thirty-six million, one hundred eighty-one thousand, five hundred thirty".