2131105461 has 8 divisors (see below), whose sum is σ = 2895086880. Its totient is φ = 1393930512.

The previous prime is 2131105441. The next prime is 2131105477. The reversal of 2131105461 is 1645011312.

It is a happy number.

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

It is not a de Polignac number, because 2131105461 - 2²⁷ = 1996887733 is a prime.

It is a super-2 number, since 2×2131105461² = 9083220971808045042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131105441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6701431 + ... + 6701748.

It is an arithmetic number, because the mean of its divisors is an integer number (361885860).

Almost surely, 2^2131105461 is an apocalyptic number.

It is an amenable number.

2131105461 is a deficient number, since it is larger than the sum of its proper divisors (763981419).

2131105461 is a wasteful number, since it uses less digits than its factorization.

2131105461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13403235.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 2131105461 is about 46163.8978098687. The cubic root of 2131105461 is about 1286.8709010799.

Adding to 2131105461 its reverse (1645011312), we get a palindrome (3776116773).

The spelling of 2131105461 in words is "two billion, one hundred thirty-one million, one hundred five thousand, four hundred sixty-one".