13443157 has 8 divisors (see below), whose sum is σ = 16545536. Its totient is φ = 10636272.

The previous prime is 13443151. The next prime is 13443161. The reversal of 13443157 is 75134431.

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 13443157 - 2¹⁵ = 13410389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13443151) 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, 73773 + ... + 73954.

It is an arithmetic number, because the mean of its divisors is an integer number (2068192).

Almost surely, 2^13443157 is an apocalyptic number.

It is an amenable number.

13443157 is a deficient number, since it is larger than the sum of its proper divisors (3102379).

13443157 is a wasteful number, since it uses less digits than its factorization.

13443157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147747.

The product of its digits is 5040, while the sum is 28.

The square root of 13443157 is about 3666.4911018575. The cubic root of 13443157 is about 237.7754926864.

Adding to 13443157 its reverse (75134431), we get a palindrome (88577588).

The spelling of 13443157 in words is "thirteen million, four hundred forty-three thousand, one hundred fifty-seven".