2145654841 has 8 divisors (see below), whose sum is σ = 2364846624. Its totient is φ = 1930485120.

The previous prime is 2145654839. The next prime is 2145654851. The reversal of 2145654841 is 1484565412.

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 2145654841 - 2¹ = 2145654839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2145654794 and 2145654803.

It is not an unprimeable number, because it can be changed into a prime (2145654811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1004395 + ... + 1006528.

It is an arithmetic number, because the mean of its divisors is an integer number (295605828).

Almost surely, 2^2145654841 is an apocalyptic number.

It is an amenable number.

2145654841 is a deficient number, since it is larger than the sum of its proper divisors (219191783).

2145654841 is a wasteful number, since it uses less digits than its factorization.

2145654841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011031.

The product of its digits is 153600, while the sum is 40.

The square root of 2145654841 is about 46321.2137254628. The cubic root of 2145654841 is about 1289.7928159141.

The spelling of 2145654841 in words is "two billion, one hundred forty-five million, six hundred fifty-four thousand, eight hundred forty-one".