131773201 has 6 divisors (see below), whose sum is σ = 153287250. Its totient is φ = 112948416.

The previous prime is 131773193. The next prime is 131773267. The reversal of 131773201 is 102377131.

It can be written as a sum of positive squares in only one way, i.e., 115004176 + 16769025 = 10724^2 + 4095^2 .

It is not a de Polignac number, because 131773201 - 2³ = 131773193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131770201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1344576 + ... + 1344673.

It is an arithmetic number, because the mean of its divisors is an integer number (25547875).

Almost surely, 2^131773201 is an apocalyptic number.

It is an amenable number.

131773201 is a deficient number, since it is larger than the sum of its proper divisors (21514049).

131773201 is an equidigital number, since it uses as much as digits as its factorization.

131773201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689263 (or 2689256 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 131773201 is about 11479.2508901931. The cubic root of 131773201 is about 508.8725587772.

The spelling of 131773201 in words is "one hundred thirty-one million, seven hundred seventy-three thousand, two hundred one".