2131406508 has 144 divisors (see below), whose sum is σ = 6343142400. Its totient is φ = 550811520.

The previous prime is 2131406489. The next prime is 2131406513. The reversal of 2131406508 is 8056041312.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1480453 + ... + 1481891.

It is an arithmetic number, because the mean of its divisors is an integer number (44049600).

Almost surely, 2^2131406508 is an apocalyptic number.

2131406508 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131406508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3171571200).

2131406508 is an abundant number, since it is smaller than the sum of its proper divisors (4211735892).

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

2131406508 is a wasteful number, since it uses less digits than its factorization.

2131406508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700 (or 1691 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 2131406508 is about 46167.1583271052. The cubic root of 2131406508 is about 1286.9314941056.

The spelling of 2131406508 in words is "two billion, one hundred thirty-one million, four hundred six thousand, five hundred eight".