131445355 has 8 divisors (see below), whose sum is σ = 157806864. Its totient is φ = 105108000.

The previous prime is 131445341. The next prime is 131445359. The reversal of 131445355 is 553544131.

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

It is not a de Polignac number, because 131445355 - 2⁹ = 131444843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131445359) 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 7 ways as a sum of consecutive naturals, for example, 9645 + ... + 18865.

It is an arithmetic number, because the mean of its divisors is an integer number (19725858).

Almost surely, 2^131445355 is an apocalyptic number.

131445355 is a deficient number, since it is larger than the sum of its proper divisors (26361509).

131445355 is an equidigital number, since it uses as much as digits as its factorization.

131445355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12077.

The product of its digits is 18000, while the sum is 31.

The square root of 131445355 is about 11464.9620583759. The cubic root of 131445355 is about 508.4501906984.

Adding to 131445355 its reverse (553544131), we get a palindrome (684989486).

The spelling of 131445355 in words is "one hundred thirty-one million, four hundred forty-five thousand, three hundred fifty-five".