131506201 has 8 divisors (see below), whose sum is σ = 138535200. Its totient is φ = 124488000.

The previous prime is 131506189. The next prime is 131506223. The reversal of 131506201 is 102605131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131506201 - 2¹⁷ = 131375129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131506231) 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 7 ways as a sum of consecutive naturals, for example, 38826 + ... + 42076.

It is an arithmetic number, because the mean of its divisors is an integer number (17316900).

Almost surely, 2^131506201 is an apocalyptic number.

It is an amenable number.

131506201 is a deficient number, since it is larger than the sum of its proper divisors (7028999).

131506201 is a wasteful number, since it uses less digits than its factorization.

131506201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5399.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 131506201 is about 11467.6153144409. The cubic root of 131506201 is about 508.5286323898.

The spelling of 131506201 in words is "one hundred thirty-one million, five hundred six thousand, two hundred one".