13871157 has 8 divisors (see below), whose sum is σ = 18888576. Its totient is φ = 9050592.

The previous prime is 13871153. The next prime is 13871173. The reversal of 13871157 is 75117831.

13871157 is digitally balanced in base 2 and base 4, because in such bases 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 not a de Polignac number, because 13871157 - 2² = 13871153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13871153) 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, 49048 + ... + 49329.

It is an arithmetic number, because the mean of its divisors is an integer number (2361072).

Almost surely, 2^13871157 is an apocalyptic number.

It is an amenable number.

13871157 is a deficient number, since it is larger than the sum of its proper divisors (5017419).

13871157 is an equidigital number, since it uses as much as digits as its factorization.

13871157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98427.

The product of its digits is 5880, while the sum is 33.

The square root of 13871157 is about 3724.4002201697. The cubic root of 13871157 is about 240.2725895838.

Adding to 13871157 its reverse (75117831), we get a palindrome (88988988).

It can be divided in two parts, 13871 and 157, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 13871157 in words is "thirteen million, eight hundred seventy-one thousand, one hundred fifty-seven".