2126705461 has 4 divisors (see below), whose sum is σ = 2126803392. Its totient is φ = 2126607532.

The previous prime is 2126705443. The next prime is 2126705467. The reversal of 2126705461 is 1645076212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2126705461 - 2⁹ = 2126704949 is a prime.

It is a super-2 number, since 2×2126705461² = 9045752235694445042, 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 (2126705467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205 + ... + 65218.

It is an arithmetic number, because the mean of its divisors is an integer number (531700848).

Almost surely, 2^2126705461 is an apocalyptic number.

It is an amenable number.

2126705461 is a deficient number, since it is larger than the sum of its proper divisors (97931).

2126705461 is an equidigital number, since it uses as much as digits as its factorization.

2126705461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97930.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 2126705461 is about 46116.2168981802. The cubic root of 2126705461 is about 1285.9846422191.

The spelling of 2126705461 in words is "two billion, one hundred twenty-six million, seven hundred five thousand, four hundred sixty-one".