131444662 has 4 divisors (see below), whose sum is σ = 197166996. Its totient is φ = 65722330.

The previous prime is 131444627. The next prime is 131444689. The reversal of 131444662 is 266444131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 266444131 = 239 ⋅1114829.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32861164 + ... + 32861167.

It is an arithmetic number, because the mean of its divisors is an integer number (49291749).

Almost surely, 2^131444662 is an apocalyptic number.

131444662 is a deficient number, since it is larger than the sum of its proper divisors (65722334).

131444662 is an equidigital number, since it uses as much as digits as its factorization.

131444662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65722333.

The product of its digits is 13824, while the sum is 31.

The square root of 131444662 is about 11464.9318358200. The cubic root of 131444662 is about 508.4492971544.

Adding to 131444662 its reverse (266444131), we get a palindrome (397888793).

The spelling of 131444662 in words is "one hundred thirty-one million, four hundred forty-four thousand, six hundred sixty-two".