2154045041 has 4 divisors (see below), whose sum is σ = 2154224292. Its totient is φ = 2153865792.

The previous prime is 2154045037. The next prime is 2154045071. The reversal of 2154045041 is 1405404512.

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

It can be written as a sum of positive squares in 2 ways, for example, as 288150625 + 1865894416 = 16975^2 + 43196^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154045041 - 2² = 2154045037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2154045041.

It is not an unprimeable number, because it can be changed into a prime (2154045031) 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, 70196 + ... + 96101.

It is an arithmetic number, because the mean of its divisors is an integer number (538556073).

Almost surely, 2^2154045041 is an apocalyptic number.

It is an amenable number.

2154045041 is a deficient number, since it is larger than the sum of its proper divisors (179251).

2154045041 is a wasteful number, since it uses less digits than its factorization.

2154045041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179250.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 2154045041 is about 46411.6907793715. The cubic root of 2154045041 is about 1291.4717975011.

Adding to 2154045041 its reverse (1405404512), we get a palindrome (3559449553).

The spelling of 2154045041 in words is "two billion, one hundred fifty-four million, forty-five thousand, forty-one".