131140345 has 16 divisors (see below), whose sum is σ = 184238208. Its totient is φ = 87730560.

The previous prime is 131140333. The next prime is 131140393. The reversal of 131140345 is 543041131.

It is not a de Polignac number, because 131140345 - 2¹⁵ = 131107577 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44259 + ... + 47128.

It is an arithmetic number, because the mean of its divisors is an integer number (11514888).

Almost surely, 2^131140345 is an apocalyptic number.

It is an amenable number.

131140345 is a deficient number, since it is larger than the sum of its proper divisors (53097863).

131140345 is an equidigital number, since it uses as much as digits as its factorization.

131140345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91440.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 131140345 is about 11451.6525008402. The cubic root of 131140345 is about 508.0566114292.

Adding to 131140345 its reverse (543041131), we get a palindrome (674181476).

The spelling of 131140345 in words is "one hundred thirty-one million, one hundred forty thousand, three hundred forty-five".