131030045 has 16 divisors (see below), whose sum is σ = 160745472. Its totient is φ = 102498240.

The previous prime is 131029993. The next prime is 131030047. The reversal of 131030045 is 540030131.

It is not a de Polignac number, because 131030045 - 2¹⁴ = 131013661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131030047) 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 15 ways as a sum of consecutive naturals, for example, 100850 + ... + 102140.

It is an arithmetic number, because the mean of its divisors is an integer number (10046592).

Almost surely, 2^131030045 is an apocalyptic number.

It is an amenable number.

131030045 is a deficient number, since it is larger than the sum of its proper divisors (29715427).

131030045 is a wasteful number, since it uses less digits than its factorization.

131030045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 131030045 is about 11446.8355889302. The cubic root of 131030045 is about 507.9141321064.

Adding to 131030045 its reverse (540030131), we get a palindrome (671060176).

The spelling of 131030045 in words is "one hundred thirty-one million, thirty thousand, forty-five".