13142235 has 8 divisors (see below), whose sum is σ = 21027600. Its totient is φ = 7009184.

The previous prime is 13142231. The next prime is 13142279. The reversal of 13142235 is 53224131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13142235 - 2² = 13142231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13142231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438060 + ... + 438089.

It is an arithmetic number, because the mean of its divisors is an integer number (2628450).

Almost surely, 2^13142235 is an apocalyptic number.

13142235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13142235 is a deficient number, since it is larger than the sum of its proper divisors (7885365).

13142235 is an equidigital number, since it uses as much as digits as its factorization.

13142235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876157.

The product of its digits is 720, while the sum is 21.

The square root of 13142235 is about 3625.2220621639. Note that the first 3 decimals coincide. The cubic root of 13142235 is about 235.9879039573.

Adding to 13142235 its reverse (53224131), we get a palindrome (66366366).

The spelling of 13142235 in words is "thirteen million, one hundred forty-two thousand, two hundred thirty-five".