131244545 has 8 divisors (see below), whose sum is σ = 162574080. Its totient is φ = 101608560.

The previous prime is 131244541. The next prime is 131244559. The reversal of 131244545 is 545442131.

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

It is not a de Polignac number, because 131244545 - 2² = 131244541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131244541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423215 + ... + 423524.

It is an arithmetic number, because the mean of its divisors is an integer number (20321760).

Almost surely, 2^131244545 is an apocalyptic number.

It is an amenable number.

131244545 is a deficient number, since it is larger than the sum of its proper divisors (31329535).

131244545 is an equidigital number, since it uses as much as digits as its factorization.

131244545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846775.

The product of its digits is 9600, while the sum is 29.

The square root of 131244545 is about 11456.2011591976. The cubic root of 131244545 is about 508.1911377485.

Adding to 131244545 its reverse (545442131), we get a palindrome (676686676).

The spelling of 131244545 in words is "one hundred thirty-one million, two hundred forty-four thousand, five hundred forty-five".