131763437 has 4 divisors (see below), whose sum is σ = 141899100. Its totient is φ = 121627776.

The previous prime is 131763431. The next prime is 131763469. The reversal of 131763437 is 734367131.

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 30680521 + 101082916 = 5539^2 + 10054^2 .

It is a cyclic number.

It is not a de Polignac number, because 131763437 - 2⁴ = 131763421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131763397 and 131763406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131763431) 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, 5067812 + ... + 5067837.

It is an arithmetic number, because the mean of its divisors is an integer number (35474775).

Almost surely, 2^131763437 is an apocalyptic number.

It is an amenable number.

131763437 is a deficient number, since it is larger than the sum of its proper divisors (10135663).

131763437 is a wasteful number, since it uses less digits than its factorization.

131763437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10135662.

The product of its digits is 31752, while the sum is 35.

The square root of 131763437 is about 11478.8255932391. The cubic root of 131763437 is about 508.8599898220.

The spelling of 131763437 in words is "one hundred thirty-one million, seven hundred sixty-three thousand, four hundred thirty-seven".