2131285760 has 36 divisors (see below), whose sum is σ = 5105098488. Its totient is φ = 852513792.

The previous prime is 2131285753. The next prime is 2131285763. The reversal of 2131285760 is 675821312.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2131285760.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131285763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831254 + ... + 833813.

Almost surely, 2^2131285760 is an apocalyptic number.

2131285760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131285760 is an abundant number, since it is smaller than the sum of its proper divisors (2973812728).

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

2131285760 is an equidigital number, since it uses as much as digits as its factorization.

2131285760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665088 (or 1665074 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 2131285760 is about 46165.8505824381. The cubic root of 2131285760 is about 1286.9071913211.

The spelling of 2131285760 in words is "two billion, one hundred thirty-one million, two hundred eighty-five thousand, seven hundred sixty".