13775207 has 4 divisors (see below), whose sum is σ = 13969296. Its totient is φ = 13581120.

The previous prime is 13775197. The next prime is 13775233. The reversal of 13775207 is 70257731.

13775207 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, and also an emirpimes, since its reverse is a distinct semiprime: 70257731 = 59 ⋅1190809.

It is a cyclic number.

It is not a de Polignac number, because 13775207 - 2⁸ = 13774951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13775107) 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, 96938 + ... + 97079.

It is an arithmetic number, because the mean of its divisors is an integer number (3492324).

Almost surely, 2^13775207 is an apocalyptic number.

13775207 is a deficient number, since it is larger than the sum of its proper divisors (194089).

13775207 is an equidigital number, since it uses as much as digits as its factorization.

13775207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194088.

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 13775207 is about 3711.4965984088. The cubic root of 13775207 is about 239.7173002361.

The spelling of 13775207 in words is "thirteen million, seven hundred seventy-five thousand, two hundred seven".