2131406519 has 8 divisors (see below), whose sum is σ = 2400176640. Its totient is φ = 1875137400.

The previous prime is 2131406513. The next prime is 2131406579. The reversal of 2131406519 is 9156041312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2131406519 - 2²⁸ = 1862971063 is a prime.

It is a super-2 number, since 2×2131406519² = 9085787498471394722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131406513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3124889 + ... + 3125570.

It is an arithmetic number, because the mean of its divisors is an integer number (300022080).

Almost surely, 2^2131406519 is an apocalyptic number.

2131406519 is a deficient number, since it is larger than the sum of its proper divisors (268770121).

2131406519 is a wasteful number, since it uses less digits than its factorization.

2131406519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6250501.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 2131406519 is about 46167.1584462375. The cubic root of 2131406519 is about 1286.9314963195.

The spelling of 2131406519 in words is "two billion, one hundred thirty-one million, four hundred six thousand, five hundred nineteen".