131263201 has 4 divisors (see below), whose sum is σ = 131332500. Its totient is φ = 131193904.

The previous prime is 131263199. The next prime is 131263217. The reversal of 131263201 is 102362131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102362131 = 67 ⋅1527793.

It can be written as a sum of positive squares in 2 ways, for example, as 37638225 + 93624976 = 6135^2 + 9676^2 .

It is a cyclic number.

It is not a de Polignac number, because 131263201 - 2¹ = 131263199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131263241) 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, 31726 + ... + 35623.

It is an arithmetic number, because the mean of its divisors is an integer number (32833125).

Almost surely, 2^131263201 is an apocalyptic number.

It is an amenable number.

131263201 is a deficient number, since it is larger than the sum of its proper divisors (69299).

131263201 is an equidigital number, since it uses as much as digits as its factorization.

131263201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69298.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 131263201 is about 11457.0153617773. The cubic root of 131263201 is about 508.2152158658.

The spelling of 131263201 in words is "one hundred thirty-one million, two hundred sixty-three thousand, two hundred one".