13001235 has 32 divisors (see below), whose sum is σ = 22790208. Its totient is φ = 6289920.

The previous prime is 13001213. The next prime is 13001237. The reversal of 13001235 is 53210031.

It is a happy number.

It is not a de Polignac number, because 13001235 - 2⁸ = 13000979 is a prime.

It is a super-2 number, since 2×13001235² = 338064223050450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (13001237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11349 + ... + 12441.

It is an arithmetic number, because the mean of its divisors is an integer number (712194).

Almost surely, 2^13001235 is an apocalyptic number.

13001235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13001235 is a deficient number, since it is larger than the sum of its proper divisors (9788973).

13001235 is a wasteful number, since it uses less digits than its factorization.

13001235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 13001235 is about 3605.7225350823. The cubic root of 13001235 is about 235.1409144295.

Adding to 13001235 its reverse (53210031), we get a palindrome (66211266).

The spelling of 13001235 in words is "thirteen million, one thousand, two hundred thirty-five".