2054455189 has 2 divisors, whose sum is σ = 2054455190. Its totient is φ = 2054455188.

The previous prime is 2054455171. The next prime is 2054455223. The reversal of 2054455189 is 9815544502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1235522500 + 818932689 = 35150^2 + 28617^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2054455189 is a prime.

It is a super-2 number, since 2×2054455189² = 8441572247218051442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2054455129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027227594 + 1027227595.

It is an arithmetic number, because the mean of its divisors is an integer number (1027227595).

Almost surely, 2^2054455189 is an apocalyptic number.

It is an amenable number.

2054455189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2054455189 is an equidigital number, since it uses as much as digits as its factorization.

2054455189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288000, while the sum is 43.

The square root of 2054455189 is about 45326.0983209453. The cubic root of 2054455189 is about 1271.2536835858.

The spelling of 2054455189 in words is "two billion, fifty-four million, four hundred fifty-five thousand, one hundred eighty-nine".