131266145 has 8 divisors (see below), whose sum is σ = 158089704. Its totient is φ = 104632704.

The previous prime is 131266141. The next prime is 131266207. The reversal of 131266145 is 541662131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 369664 + 130896481 = 608^2 + 11441^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 131266145 - 2² = 131266141 is a prime.

It is a super-2 number, since 2×131266145² = 34461601646322050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131266141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46004 + ... + 48773.

It is an arithmetic number, because the mean of its divisors is an integer number (19761213).

Almost surely, 2^131266145 is an apocalyptic number.

It is an amenable number.

131266145 is a deficient number, since it is larger than the sum of its proper divisors (26823559).

131266145 is an equidigital number, since it uses as much as digits as its factorization.

131266145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95059.

The product of its digits is 4320, while the sum is 29.

The square root of 131266145 is about 11457.1438412896. The cubic root of 131266145 is about 508.2190152917.

The spelling of 131266145 in words is "one hundred thirty-one million, two hundred sixty-six thousand, one hundred forty-five".