2146975121 has 8 divisors (see below), whose sum is σ = 2173353000. Its totient is φ = 2120757120.

The previous prime is 2146975109. The next prime is 2146975123. The reversal of 2146975121 is 1215796412.

It can be written as a sum of positive squares in 4 ways, for example, as 3748096 + 2143227025 = 1936^2 + 46295^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2146975121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2146975123) 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, 12836 + ... + 66773.

It is an arithmetic number, because the mean of its divisors is an integer number (271669125).

Almost surely, 2^2146975121 is an apocalyptic number.

It is an amenable number.

2146975121 is a deficient number, since it is larger than the sum of its proper divisors (26377879).

2146975121 is a wasteful number, since it uses less digits than its factorization.

2146975121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79939.

The product of its digits is 30240, while the sum is 38.

The square root of 2146975121 is about 46335.4628875120. The cubic root of 2146975121 is about 1290.0573099151.

The spelling of 2146975121 in words is "two billion, one hundred forty-six million, nine hundred seventy-five thousand, one hundred twenty-one".