131644148 has 6 divisors (see below), whose sum is σ = 230377266. Its totient is φ = 65822072.

The previous prime is 131644129. The next prime is 131644151. The reversal of 131644148 is 841446131.

It can be written as a sum of positive squares in only one way, i.e., 90402064 + 41242084 = 9508^2 + 6422^2 .

It is a super-3 number, since 3×131644148³ (a number of 25 digits) contains 333 as substring.

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 as a sum of consecutive naturals, namely, 16455515 + ... + 16455522.

It is an arithmetic number, because the mean of its divisors is an integer number (38396211).

Almost surely, 2^131644148 is an apocalyptic number.

It is an amenable number.

131644148 is a deficient number, since it is larger than the sum of its proper divisors (98733118).

131644148 is a wasteful number, since it uses less digits than its factorization.

131644148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32911041 (or 32911039 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 131644148 is about 11473.6283711823. The cubic root of 131644148 is about 508.7063818911.

The spelling of 131644148 in words is "one hundred thirty-one million, six hundred forty-four thousand, one hundred forty-eight".