13781153 has 2 divisors, whose sum is σ = 13781154. Its totient is φ = 13781152.

The previous prime is 13781149. The next prime is 13781179. The reversal of 13781153 is 35118731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13778944 + 2209 = 3712^2 + 47^2 .

It is a cyclic number.

It is not a de Polignac number, because 13781153 - 2² = 13781149 is a prime.

It is not a weakly prime, because it can be changed into another prime (13781123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6890576 + 6890577.

It is an arithmetic number, because the mean of its divisors is an integer number (6890577).

Almost surely, 2^13781153 is an apocalyptic number.

It is an amenable number.

13781153 is a deficient number, since it is larger than the sum of its proper divisors (1).

13781153 is an equidigital number, since it uses as much as digits as its factorization.

13781153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 29.

The square root of 13781153 is about 3712.2975365668. The cubic root of 13781153 is about 239.7517862039.

Adding to 13781153 its reverse (35118731), we get a palindrome (48899884).

The spelling of 13781153 in words is "thirteen million, seven hundred eighty-one thousand, one hundred fifty-three".