2144574961 has 8 divisors (see below), whose sum is σ = 2152725120. Its totient is φ = 2136440592.

The previous prime is 2144574937. The next prime is 2144574977. The reversal of 2144574961 is 1694754412.

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

It is a cyclic number.

It is not a de Polignac number, because 2144574961 - 2²⁵ = 2111020529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2144574161) 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, 315151 + ... + 321883.

It is an arithmetic number, because the mean of its divisors is an integer number (269090640).

Almost surely, 2^2144574961 is an apocalyptic number.

It is an amenable number.

2144574961 is a deficient number, since it is larger than the sum of its proper divisors (8150159).

2144574961 is an equidigital number, since it uses as much as digits as its factorization.

2144574961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7895.

The product of its digits is 241920, while the sum is 43.

The square root of 2144574961 is about 46309.5558281442. Note that the first 3 decimals coincide. The cubic root of 2144574961 is about 1289.5764009892.

The spelling of 2144574961 in words is "two billion, one hundred forty-four million, five hundred seventy-four thousand, nine hundred sixty-one".