2154618441 has 8 divisors (see below), whose sum is σ = 3192027360. Its totient is φ = 1436412276.

The previous prime is 2154618419. The next prime is 2154618457. The reversal of 2154618441 is 1448164512.

2154618441 is a `hidden beast` number, since 2 + 154 + 61 + 8 + 441 = 666.

It is not a de Polignac number, because 2154618441 - 2⁵ = 2154618409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2154618396 and 2154618405.

It is not an unprimeable number, because it can be changed into a prime (2154618491) 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, 39900315 + ... + 39900368.

It is an arithmetic number, because the mean of its divisors is an integer number (399003420).

Almost surely, 2^2154618441 is an apocalyptic number.

It is an amenable number.

2154618441 is a deficient number, since it is larger than the sum of its proper divisors (1037408919).

2154618441 is an equidigital number, since it uses as much as digits as its factorization.

2154618441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79800692 (or 79800686 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 2154618441 is about 46417.8676912242. The cubic root of 2154618441 is about 1291.5863825748.

The spelling of 2154618441 in words is "two billion, one hundred fifty-four million, six hundred eighteen thousand, four hundred forty-one".