214545902481 has 27 divisors (see below), whose sum is σ = 313146485769. Its totient is φ = 141547464072.

The previous prime is 214545902471. The next prime is 214545902497. The reversal of 214545902481 is 184209545412.

The square root of 214545902481 is 463191.

It is a perfect power (a square), and thus also a powerful number.

214545902481 is a `hidden beast` number, since 2 + 1 + 4 + 54 + 590 + 2 + 4 + 8 + 1 = 666.

It is not a de Polignac number, because 214545902481 - 2¹⁹ = 214545378193 is a prime.

It is a super-2 number, since 2×214545902481² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (214545902471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 143125270 + ... + 143126768.

Almost surely, 2^214545902481 is an apocalyptic number.

214545902481 is the 463191-st square number.

214545902481 is the 231596-th centered octagonal number.

It is an amenable number.

214545902481 is a deficient number, since it is larger than the sum of its proper divisors (98600583288).

214545902481 is an frugal number, since it uses more digits than its factorization.

214545902481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3210 (or 1605 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 214545902481 in words is "two hundred fourteen billion, five hundred forty-five million, nine hundred two thousand, four hundred eighty-one".