2012051540 has 48 divisors (see below), whose sum is σ = 4328759232. Its totient is φ = 785342976.

The previous prime is 2012051533. The next prime is 2012051563. The reversal of 2012051540 is 451502102.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 136364 + ... + 150396.

It is an arithmetic number, because the mean of its divisors is an integer number (90182484).

Almost surely, 2^2012051540 is an apocalyptic number.

2012051540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012051540 is an abundant number, since it is smaller than the sum of its proper divisors (2316707692).

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

2012051540 is a wasteful number, since it uses less digits than its factorization.

2012051540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14216 (or 14214 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 2012051540 is about 44855.8974940865. The cubic root of 2012051540 is about 1262.4466485967.

Adding to 2012051540 its reverse (451502102), we get a palindrome (2463553642).

The spelling of 2012051540 in words is "two billion, twelve million, fifty-one thousand, five hundred forty".