2154226471 has 2 divisors, whose sum is σ = 2154226472. Its totient is φ = 2154226470.

The previous prime is 2154226457. The next prime is 2154226523. The reversal of 2154226471 is 1746224512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2154226471 - 2¹³ = 2154218279 is a prime.

It is a super-3 number, since 3×2154226471³ (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 (2154226421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077113235 + 1077113236.

It is an arithmetic number, because the mean of its divisors is an integer number (1077113236).

Almost surely, 2^2154226471 is an apocalyptic number.

2154226471 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154226471 is an equidigital number, since it uses as much as digits as its factorization.

2154226471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 34.

The square root of 2154226471 is about 46413.6453104041. The cubic root of 2154226471 is about 1291.5080556643.

The spelling of 2154226471 in words is "two billion, one hundred fifty-four million, two hundred twenty-six thousand, four hundred seventy-one".