2131440413 has 8 divisors (see below), whose sum is σ = 2139933432. Its totient is φ = 2122960896.

The previous prime is 2131440403. The next prime is 2131440439. The reversal of 2131440413 is 3140441312.

It can be written as a sum of positive squares in 4 ways, for example, as 59552089 + 2071888324 = 7717^2 + 45518^2 .

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 2131440413 - 2¹⁰ = 2131439389 is a prime.

It is a super-2 number, since 2×2131440413² = 9086076468339221138, 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 (2131440403) 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, 407531 + ... + 412727.

It is an arithmetic number, because the mean of its divisors is an integer number (267491679).

Almost surely, 2^2131440413 is an apocalyptic number.

It is an amenable number.

2131440413 is a deficient number, since it is larger than the sum of its proper divisors (8493019).

2131440413 is a wasteful number, since it uses less digits than its factorization.

2131440413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6751.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2131440413 is about 46167.5255239005. The cubic root of 2131440413 is about 1286.9383179534.

Adding to 2131440413 its reverse (3140441312), we get a palindrome (5271881725).

The spelling of 2131440413 in words is "two billion, one hundred thirty-one million, four hundred forty thousand, four hundred thirteen".