214655229481 has 45 divisors (see below), whose sum is σ = 275172429645. Its totient is φ = 166958031240.

The previous prime is 214655229431. The next prime is 214655229499. The reversal of 214655229481 is 184922556412.

The square root of 214655229481 is 463309.

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

It is not a de Polignac number, because 214655229481 - 2⁷ = 214655229353 is a prime.

It is a super-2 number, since 2×214655229481² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

Its product of digits (1382400) is a multiple of the sum of its prime factors (1152).

It is not an unprimeable number, because it can be changed into a prime (214655229431) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 392422450 + ... + 392422996.

It is an arithmetic number, because the mean of its divisors is an integer number (6114942881).

Almost surely, 2^214655229481 is an apocalyptic number.

214655229481 is the 463309-th square number.

214655229481 is the 231655-th centered octagonal number.

It is an amenable number.

214655229481 is a deficient number, since it is larger than the sum of its proper divisors (60517200164).

214655229481 is an frugal number, since it uses more digits than its factorization.

214655229481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152 (or 565 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 49.

Multiplying 214655229481 by its sum of digits (49), we get a square (10518106244569 = 3243163²).

214655229481 divided by its sum of digits (49) gives a square (4380718969 = 66187²).

The spelling of 214655229481 in words is "two hundred fourteen billion, six hundred fifty-five million, two hundred twenty-nine thousand, four hundred eighty-one".