20152240134 has 16 divisors (see below), whose sum is σ = 43404825072. Its totient is φ = 6200689248.

The previous prime is 20152240111. The next prime is 20152240159. The reversal of 20152240134 is 43104225102.

It is a super-2 number, since 2×20152240134² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129180949 + ... + 129181104.

It is an arithmetic number, because the mean of its divisors is an integer number (2712801567).

Almost surely, 2^20152240134 is an apocalyptic number.

20152240134 is an abundant number, since it is smaller than the sum of its proper divisors (23252584938).

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

20152240134 is a wasteful number, since it uses less digits than its factorization.

20152240134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258362071.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 20152240134 its reverse (43104225102), we get a palindrome (63256465236).

The spelling of 20152240134 in words is "twenty billion, one hundred fifty-two million, two hundred forty thousand, one hundred thirty-four".