13242155 has 8 divisors (see below), whose sum is σ = 15915312. Its totient is φ = 10577248.

The previous prime is 13242121. The next prime is 13242157. The reversal of 13242155 is 55124231.

13242155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13242155 - 2²² = 9047851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13242155.

It is not an unprimeable number, because it can be changed into a prime (13242157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2324 + ... + 5646.

It is an arithmetic number, because the mean of its divisors is an integer number (1989414).

Almost surely, 2^13242155 is an apocalyptic number.

13242155 is a deficient number, since it is larger than the sum of its proper divisors (2673157).

13242155 is an equidigital number, since it uses as much as digits as its factorization.

13242155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4125.

The product of its digits is 1200, while the sum is 23.

The square root of 13242155 is about 3638.9771914647. The cubic root of 13242155 is about 236.5844641668.

Adding to 13242155 its reverse (55124231), we get a palindrome (68366386).

The spelling of 13242155 in words is "thirteen million, two hundred forty-two thousand, one hundred fifty-five".