131764441 has 4 divisors (see below), whose sum is σ = 132930612. Its totient is φ = 130598272.

The previous prime is 131764421. The next prime is 131764459. The reversal of 131764441 is 144467131.

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 63536841 + 68227600 = 7971^2 + 8260^2 .

It is a cyclic number.

It is not a de Polignac number, because 131764441 - 2¹³ = 131756249 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131764421) 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, 582916 + ... + 583141.

It is an arithmetic number, because the mean of its divisors is an integer number (33232653).

Almost surely, 2^131764441 is an apocalyptic number.

It is an amenable number.

131764441 is a deficient number, since it is larger than the sum of its proper divisors (1166171).

131764441 is a wasteful number, since it uses less digits than its factorization.

131764441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166170.

The product of its digits is 8064, while the sum is 31.

The square root of 131764441 is about 11478.8693258526. The cubic root of 131764441 is about 508.8612822749.

The spelling of 131764441 in words is "one hundred thirty-one million, seven hundred sixty-four thousand, four hundred forty-one".