2126051247 has 16 divisors (see below), whose sum is σ = 2860175360. Its totient is φ = 1404672192.

The previous prime is 2126051243. The next prime is 2126051273. The reversal of 2126051247 is 7421506212.

It is not a de Polignac number, because 2126051247 - 2² = 2126051243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126051243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425379 + ... + 430347.

It is an arithmetic number, because the mean of its divisors is an integer number (178760960).

Almost surely, 2^2126051247 is an apocalyptic number.

2126051247 is a deficient number, since it is larger than the sum of its proper divisors (734124113).

2126051247 is a wasteful number, since it uses less digits than its factorization.

2126051247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6222.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 2126051247 is about 46109.1232512612. The cubic root of 2126051247 is about 1285.8527644619.

Adding to 2126051247 its reverse (7421506212), we get a palindrome (9547557459).

The spelling of 2126051247 in words is "two billion, one hundred twenty-six million, fifty-one thousand, two hundred forty-seven".