13772282 has 4 divisors (see below), whose sum is σ = 20658426. Its totient is φ = 6886140.

The previous prime is 13772281. The next prime is 13772293. The reversal of 13772282 is 28227731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28227731 = 7 ⋅4032533.

It can be written as a sum of positive squares in only one way, i.e., 9728161 + 4044121 = 3119^2 + 2011^2 .

It is not an unprimeable number, because it can be changed into a prime (13772281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3443069 + ... + 3443072.

Almost surely, 2^13772282 is an apocalyptic number.

13772282 is a deficient number, since it is larger than the sum of its proper divisors (6886144).

13772282 is an equidigital number, since it uses as much as digits as its factorization.

13772282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6886143.

The product of its digits is 9408, while the sum is 32.

The square root of 13772282 is about 3711.1025315935. The cubic root of 13772282 is about 239.7003320038.

The spelling of 13772282 in words is "thirteen million, seven hundred seventy-two thousand, two hundred eighty-two".