13155101 has 4 divisors (see below), whose sum is σ = 13275900. Its totient is φ = 13034304.

The previous prime is 13155083. The next prime is 13155133. The reversal of 13155101 is 10155131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9449476 + 3705625 = 3074^2 + 1925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13155101 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 13155101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13155601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60236 + ... + 60453.

It is an arithmetic number, because the mean of its divisors is an integer number (3318975).

Almost surely, 2^13155101 is an apocalyptic number.

It is an amenable number.

13155101 is a deficient number, since it is larger than the sum of its proper divisors (120799).

13155101 is a wasteful number, since it uses less digits than its factorization.

13155101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120798.

The product of its (nonzero) digits is 75, while the sum is 17.

The square root of 13155101 is about 3626.9961400586. The cubic root of 13155101 is about 236.0648880753.

The spelling of 13155101 in words is "thirteen million, one hundred fifty-five thousand, one hundred one".