131619648 has 28 divisors (see below), whose sum is σ = 348244160. Its totient is φ = 43873152.

The previous prime is 131619647. The next prime is 131619673. The reversal of 131619648 is 846916131.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131619641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342568 + ... + 342951.

Almost surely, 2^131619648 is an apocalyptic number.

It is an amenable number.

131619648 is an abundant number, since it is smaller than the sum of its proper divisors (216624512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131619648 is an equidigital number, since it uses as much as digits as its factorization.

131619648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685534 (or 685524 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 131619648 is about 11472.5606557560. The cubic root of 131619648 is about 508.6748218616.

The spelling of 131619648 in words is "one hundred thirty-one million, six hundred nineteen thousand, six hundred forty-eight".