9214272081 has 45 divisors (see below), whose sum is σ = 15550645019. Its totient is φ = 5257235088.

The previous prime is 9214272049. The next prime is 9214272113. The reversal of 9214272081 is 1802724129.

The square root of 9214272081 is 95991.

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

9214272081 is a `hidden beast` number, since 9 + 21 + 427 + 208 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (9214272049) and next prime (9214272113).

It can be written as a sum of positive squares in only one way, i.e., 2144153025 + 7070119056 = 46305^2 + 84084^2 .

It is not a de Polignac number, because 9214272081 - 2⁵ = 9214272049 is a prime.

It is a super-2 number, since 2×9214272081² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9214272031) 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, 14110351 + ... + 14111003.

Almost surely, 2^9214272081 is an apocalyptic number.

9214272081 is the 95991-st square number.

9214272081 is the 47996-th centered octagonal number.

It is an amenable number.

9214272081 is a deficient number, since it is larger than the sum of its proper divisors (6336372938).

9214272081 is an frugal number, since it uses more digits than its factorization.

9214272081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The cubic root of 9214272081 is about 2096.4620762499.

Multiplying 9214272081 by its sum of digits (36), we get a square (331713794916 = 575946²).

The spelling of 9214272081 in words is "nine billion, two hundred fourteen million, two hundred seventy-two thousand, eighty-one".