2131540104 has 64 divisors (see below), whose sum is σ = 5794848000. Its totient is φ = 650640384.

The previous prime is 2131540063. The next prime is 2131540139. The reversal of 2131540104 is 4010451312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55504 + ... + 85695.

It is an arithmetic number, because the mean of its divisors is an integer number (90544500).

Almost surely, 2^2131540104 is an apocalyptic number.

2131540104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2131540104 is an abundant number, since it is smaller than the sum of its proper divisors (3663307896).

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

2131540104 is a wasteful number, since it uses less digits than its factorization.

2131540104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141262 (or 141258 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2131540104 is about 46168.6051771114. The cubic root of 2131540104 is about 1286.9583817198.

Adding to 2131540104 its reverse (4010451312), we get a palindrome (6141991416).

The spelling of 2131540104 in words is "two billion, one hundred thirty-one million, five hundred forty thousand, one hundred four".