2154000551 has 2 divisors, whose sum is σ = 2154000552. Its totient is φ = 2154000550.

The previous prime is 2154000539. The next prime is 2154000587. The reversal of 2154000551 is 1550004512.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2154000551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2154006551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077000275 + 1077000276.

It is an arithmetic number, because the mean of its divisors is an integer number (1077000276).

Almost surely, 2^2154000551 is an apocalyptic number.

2154000551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154000551 is an equidigital number, since it uses as much as digits as its factorization.

2154000551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 2154000551 is about 46411.2114795552. The cubic root of 2154000551 is about 1291.4629060163.

The spelling of 2154000551 in words is "two billion, one hundred fifty-four million, five hundred fifty-one", and thus it is an aban number.