2154541567 has 2 divisors, whose sum is σ = 2154541568. Its totient is φ = 2154541566.

The previous prime is 2154541553. The next prime is 2154541577. The reversal of 2154541567 is 7651454512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2154541567 - 2⁷ = 2154541439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2154541577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077270783 + 1077270784.

It is an arithmetic number, because the mean of its divisors is an integer number (1077270784).

Almost surely, 2^2154541567 is an apocalyptic number.

2154541567 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154541567 is an equidigital number, since it uses as much as digits as its factorization.

2154541567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168000, while the sum is 40.

The square root of 2154541567 is about 46417.0396190882. The cubic root of 2154541567 is about 1291.5710216814.

The spelling of 2154541567 in words is "two billion, one hundred fifty-four million, five hundred forty-one thousand, five hundred sixty-seven".