2125098947 has 4 divisors (see below), whose sum is σ = 2236946280. Its totient is φ = 2013251616.

The previous prime is 2125098931. The next prime is 2125098977. The reversal of 2125098947 is 7498905212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2125098947 - 2⁴ = 2125098931 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2125098977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55923638 + ... + 55923675.

It is an arithmetic number, because the mean of its divisors is an integer number (559236570).

Almost surely, 2^2125098947 is an apocalyptic number.

2125098947 is a deficient number, since it is larger than the sum of its proper divisors (111847333).

2125098947 is a wasteful number, since it uses less digits than its factorization.

2125098947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111847332.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 2125098947 is about 46098.7955048719. The cubic root of 2125098947 is about 1285.6607495762.

The spelling of 2125098947 in words is "two billion, one hundred twenty-five million, ninety-eight thousand, nine hundred forty-seven".