14891881 has 9 divisors (see below), whose sum is σ = 15889399. Its totient is φ = 13954144.

The previous prime is 14891861. The next prime is 14891909. The reversal of 14891881 is 18819841.

The square root of 14891881 is 3859.

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

It can be written as a sum of positive squares in only one way, i.e., 11594025 + 3297856 = 3405^2 + 1816^2 .

It is not a de Polignac number, because 14891881 - 2¹⁵ = 14859113 is a prime.

It is a super-3 number, since 3×14891881³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14891861) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 65490 + ... + 65716.

Almost surely, 2^14891881 is an apocalyptic number.

14891881 is the 3859-th square number.

14891881 is the 1930-th centered octagonal number.

It is an amenable number.

14891881 is a deficient number, since it is larger than the sum of its proper divisors (997518).

14891881 is an frugal number, since it uses more digits than its factorization.

14891881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 244 counting only the distinct ones).

The product of its digits is 18432, while the sum is 40.

The cubic root of 14891881 is about 246.0272349603.

It can be divided in two parts, 148 and 91881, that added together give a palindrome (92029).

The spelling of 14891881 in words is "fourteen million, eight hundred ninety-one thousand, eight hundred eighty-one".