2148605471 has 2 divisors, whose sum is σ = 2148605472. Its totient is φ = 2148605470.

The previous prime is 2148605449. The next prime is 2148605507. The reversal of 2148605471 is 1745068412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2148605471 - 2¹⁴ = 2148589087 is a prime.

It is a super-3 number, since 3×2148605471³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2148605971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074302735 + 1074302736.

It is an arithmetic number, because the mean of its divisors is an integer number (1074302736).

Almost surely, 2^2148605471 is an apocalyptic number.

2148605471 is a deficient number, since it is larger than the sum of its proper divisors (1).

2148605471 is an equidigital number, since it uses as much as digits as its factorization.

2148605471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 2148605471 is about 46353.0524453352. The cubic root of 2148605471 is about 1290.3837712014.

The spelling of 2148605471 in words is "two billion, one hundred forty-eight million, six hundred five thousand, four hundred seventy-one".