131553159 has 4 divisors (see below), whose sum is σ = 175404216. Its totient is φ = 87702104.

The previous prime is 131553109. The next prime is 131553161. The reversal of 131553159 is 951355131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 951355131 = 3 ⋅317118377.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131553159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131553109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21925524 + ... + 21925529.

It is an arithmetic number, because the mean of its divisors is an integer number (43851054).

Almost surely, 2^131553159 is an apocalyptic number.

131553159 is a deficient number, since it is larger than the sum of its proper divisors (43851057).

131553159 is an equidigital number, since it uses as much as digits as its factorization.

131553159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43851056.

The product of its digits is 10125, while the sum is 33.

The square root of 131553159 is about 11469.6625495260. The cubic root of 131553159 is about 508.5891533529.

The spelling of 131553159 in words is "one hundred thirty-one million, five hundred fifty-three thousand, one hundred fifty-nine".