131364545 has 12 divisors (see below), whose sum is σ = 170697276. Its totient is φ = 97007040.

The previous prime is 131364529. The next prime is 131364547. The reversal of 131364545 is 545463131.

It can be written as a sum of positive squares in 6 ways, for example, as 1495729 + 129868816 = 1223^2 + 11396^2 .

It is not a de Polignac number, because 131364545 - 2⁴ = 131364529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131364547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76886 + ... + 78575.

It is an arithmetic number, because the mean of its divisors is an integer number (14224773).

Almost surely, 2^131364545 is an apocalyptic number.

It is an amenable number.

131364545 is a deficient number, since it is larger than the sum of its proper divisors (39332731).

131364545 is a wasteful number, since it uses less digits than its factorization.

131364545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155492 (or 155479 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 131364545 is about 11461.4373007926. The cubic root of 131364545 is about 508.3459743042.

The spelling of 131364545 in words is "one hundred thirty-one million, three hundred sixty-four thousand, five hundred forty-five".