13541993 has 2 divisors, whose sum is σ = 13541994. Its totient is φ = 13541992.

The previous prime is 13541981. The next prime is 13542029. The reversal of 13541993 is 39914531.

13541993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11505664 + 2036329 = 3392^2 + 1427^2 .

It is a cyclic number.

It is not a de Polignac number, because 13541993 - 2⁶ = 13541929 is a prime.

It is not a weakly prime, because it can be changed into another prime (13541903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6770996 + 6770997.

It is an arithmetic number, because the mean of its divisors is an integer number (6770997).

Almost surely, 2^13541993 is an apocalyptic number.

It is an amenable number.

13541993 is a deficient number, since it is larger than the sum of its proper divisors (1).

13541993 is an equidigital number, since it uses as much as digits as its factorization.

13541993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 35.

The square root of 13541993 is about 3679.9447006715. The cubic root of 13541993 is about 238.3567901452.

The spelling of 13541993 in words is "thirteen million, five hundred forty-one thousand, nine hundred ninety-three".