2001523134 has 32 divisors (see below), whose sum is σ = 4314229920. Its totient is φ = 615388032.

The previous prime is 2001523127. The next prime is 2001523163. The reversal of 2001523134 is 4313251002.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2001523134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102484 + ... + 120440.

It is an arithmetic number, because the mean of its divisors is an integer number (134819685).

Almost surely, 2^2001523134 is an apocalyptic number.

2001523134 is an abundant number, since it is smaller than the sum of its proper divisors (2312706786).

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

2001523134 is a wasteful number, since it uses less digits than its factorization.

2001523134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19404.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2001523134 is about 44738.3854648332. The cubic root of 2001523134 is about 1260.2408068346.

Adding to 2001523134 its reverse (4313251002), we get a palindrome (6314774136).

The spelling of 2001523134 in words is "two billion, one million, five hundred twenty-three thousand, one hundred thirty-four".