131430545 has 16 divisors (see below), whose sum is σ = 163660800. Its totient is φ = 101217600.

The previous prime is 131430529. The next prime is 131430599. The reversal of 131430545 is 545034131.

It is not a de Polignac number, because 131430545 - 2⁴ = 131430529 is a prime.

It is a Curzon number.

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, 28715 + ... + 32975.

It is an arithmetic number, because the mean of its divisors is an integer number (10228800).

Almost surely, 2^131430545 is an apocalyptic number.

It is an amenable number.

131430545 is a deficient number, since it is larger than the sum of its proper divisors (32230255).

131430545 is a wasteful number, since it uses less digits than its factorization.

131430545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4496.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 131430545 is about 11464.3161592831. The cubic root of 131430545 is about 508.4310942199.

Adding to 131430545 its reverse (545034131), we get a palindrome (676464676).

The spelling of 131430545 in words is "one hundred thirty-one million, four hundred thirty thousand, five hundred forty-five".