131032201 has 4 divisors (see below), whose sum is σ = 132191892. Its totient is φ = 129872512.

The previous prime is 131032199. The next prime is 131032211. The reversal of 131032201 is 102230131.

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 51840000 + 79192201 = 7200^2 + 8899^2 .

It is a cyclic number.

It is not a de Polignac number, because 131032201 - 2¹ = 131032199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131032211) 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, 579676 + ... + 579901.

It is an arithmetic number, because the mean of its divisors is an integer number (33047973).

Almost surely, 2^131032201 is an apocalyptic number.

It is an amenable number.

131032201 is a deficient number, since it is larger than the sum of its proper divisors (1159691).

131032201 is a wasteful number, since it uses less digits than its factorization.

131032201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159690.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 131032201 is about 11446.9297630413. The cubic root of 131032201 is about 507.9169178717.

Adding to 131032201 its reverse (102230131), we get a palindrome (233262332).

The spelling of 131032201 in words is "one hundred thirty-one million, thirty-two thousand, two hundred one".