131759545 has 4 divisors (see below), whose sum is σ = 158111460. Its totient is φ = 105407632.

The previous prime is 131759539. The next prime is 131759549. The reversal of 131759545 is 545957131.

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 72454144 + 59305401 = 8512^2 + 7701^2 .

It is a cyclic number.

It is not a de Polignac number, because 131759545 - 2⁷ = 131759417 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 131759498 and 131759507.

It is not an unprimeable number, because it can be changed into a prime (131759549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13175950 + ... + 13175959.

It is an arithmetic number, because the mean of its divisors is an integer number (39527865).

Almost surely, 2^131759545 is an apocalyptic number.

It is an amenable number.

131759545 is a deficient number, since it is larger than the sum of its proper divisors (26351915).

131759545 is an equidigital number, since it uses as much as digits as its factorization.

131759545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26351914.

The product of its digits is 94500, while the sum is 40.

The square root of 131759545 is about 11478.6560624491. The cubic root of 131759545 is about 508.8549795737.

The spelling of 131759545 in words is "one hundred thirty-one million, seven hundred fifty-nine thousand, five hundred forty-five".