13105235 has 16 divisors (see below), whose sum is σ = 18476640. Its totient is φ = 8797440.

The previous prime is 13105217. The next prime is 13105247. The reversal of 13105235 is 53250131.

13105235 = 55² + 56² + ... + 340².

It is not a de Polignac number, because 13105235 - 2⁶ = 13105171 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8450 + ... + 9879.

It is an arithmetic number, because the mean of its divisors is an integer number (1154790).

Almost surely, 2^13105235 is an apocalyptic number.

13105235 is a deficient number, since it is larger than the sum of its proper divisors (5371405).

13105235 is a wasteful number, since it uses less digits than its factorization.

13105235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18358.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 13105235 is about 3620.1153296546. The cubic root of 13105235 is about 235.7662328992.

Adding to 13105235 its reverse (53250131), we get a palindrome (66355366).

Subtracting 13105235 from its reverse (53250131), we obtain a square (40144896 = 6336²).

The spelling of 13105235 in words is "thirteen million, one hundred five thousand, two hundred thirty-five".