131962445 has 4 divisors (see below), whose sum is σ = 158354940. Its totient is φ = 105569952.

The previous prime is 131962433. The next prime is 131962451. The reversal of 131962445 is 544269131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 544269131 = 7 ⋅77752733.

It can be written as a sum of positive squares in 2 ways, for example, as 34880836 + 97081609 = 5906^2 + 9853^2 .

It is a cyclic number.

It is not a de Polignac number, because 131962445 - 2¹⁸ = 131700301 is a prime.

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 13196240 + ... + 13196249.

It is an arithmetic number, because the mean of its divisors is an integer number (39588735).

Almost surely, 2^131962445 is an apocalyptic number.

It is an amenable number.

131962445 is a deficient number, since it is larger than the sum of its proper divisors (26392495).

131962445 is an equidigital number, since it uses as much as digits as its factorization.

131962445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26392494.

The product of its digits is 25920, while the sum is 35.

The square root of 131962445 is about 11487.4908052194. The cubic root of 131962445 is about 509.1160453488.

The spelling of 131962445 in words is "one hundred thirty-one million, nine hundred sixty-two thousand, four hundred forty-five".