131046445 has 8 divisors (see below), whose sum is σ = 157374360. Its totient is φ = 104758080.

The previous prime is 131046397. The next prime is 131046491. The reversal of 131046445 is 544640131.

It can be written as a sum of positive squares in 4 ways, for example, as 3740356 + 127306089 = 1934^2 + 11283^2 .

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

It is not a de Polignac number, because 131046445 - 2²³ = 122657837 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 2026 + ... + 16315.

It is an arithmetic number, because the mean of its divisors is an integer number (19671795).

Almost surely, 2^131046445 is an apocalyptic number.

It is an amenable number.

131046445 is a deficient number, since it is larger than the sum of its proper divisors (26327915).

131046445 is a wasteful number, since it uses less digits than its factorization.

131046445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19775.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 131046445 is about 11447.5519216992. The cubic root of 131046445 is about 507.9353217612.

Adding to 131046445 its reverse (544640131), we get a palindrome (675686576).

The spelling of 131046445 in words is "one hundred thirty-one million, forty-six thousand, four hundred forty-five".