2145918041 has 8 divisors (see below), whose sum is σ = 2276621640. Its totient is φ = 2015711488.

The previous prime is 2145918037. The next prime is 2145918077. The reversal of 2145918041 is 1408195412.

It can be written as a sum of positive squares in 4 ways, for example, as 565060441 + 1580857600 = 23771^2 + 39760^2 .

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

It is not a de Polignac number, because 2145918041 - 2² = 2145918037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2145917992 and 2145918010.

It is not an unprimeable number, because it can be changed into a prime (2145918011) 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, 115346 + ... + 132651.

It is an arithmetic number, because the mean of its divisors is an integer number (284577705).

Almost surely, 2^2145918041 is an apocalyptic number.

It is an amenable number.

2145918041 is a deficient number, since it is larger than the sum of its proper divisors (130703599).

2145918041 is a wasteful number, since it uses less digits than its factorization.

2145918041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248523.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 2145918041 is about 46324.0546692536. The cubic root of 2145918041 is about 1289.8455518875.

The spelling of 2145918041 in words is "two billion, one hundred forty-five million, nine hundred eighteen thousand, forty-one".