131426201 has 4 divisors (see below), whose sum is σ = 139157172. Its totient is φ = 123695232.

The previous prime is 131426179. The next prime is 131426219. The reversal of 131426201 is 102624131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102624131 = 1783 ⋅57557.

It can be written as a sum of positive squares in 2 ways, for example, as 58920976 + 72505225 = 7676^2 + 8515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131426201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131426261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3865460 + ... + 3865493.

It is an arithmetic number, because the mean of its divisors is an integer number (34789293).

Almost surely, 2^131426201 is an apocalyptic number.

It is an amenable number.

131426201 is a deficient number, since it is larger than the sum of its proper divisors (7730971).

131426201 is an equidigital number, since it uses as much as digits as its factorization.

131426201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7730970.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 131426201 is about 11464.1267002768. The cubic root of 131426201 is about 508.4254926580.

The spelling of 131426201 in words is "one hundred thirty-one million, four hundred twenty-six thousand, two hundred one".