11954281 has 4 divisors (see below), whose sum is σ = 12657492. Its totient is φ = 11251072.

The previous prime is 11954279. The next prime is 11954303. The reversal of 11954281 is 18245911.

It is a happy number.

11954281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5784025 + 6170256 = 2405^2 + 2484^2 .

It is a cyclic number.

It is not a de Polignac number, because 11954281 - 2¹ = 11954279 is a prime.

It is a super-2 number, since 2×11954281² = 285809668453922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11954221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351580 + ... + 351613.

It is an arithmetic number, because the mean of its divisors is an integer number (3164373).

Almost surely, 2^11954281 is an apocalyptic number.

It is an amenable number.

11954281 is a deficient number, since it is larger than the sum of its proper divisors (703211).

11954281 is an equidigital number, since it uses as much as digits as its factorization.

11954281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703210.

The product of its digits is 2880, while the sum is 31.

The square root of 11954281 is about 3457.4963485158. The cubic root of 11954281 is about 228.6517274233.

It can be divided in two parts, 1195 and 4281, that added together give a square (5476 = 74²).

The spelling of 11954281 in words is "eleven million, nine hundred fifty-four thousand, two hundred eighty-one".