131619064 has 32 divisors (see below), whose sum is σ = 264489120. Its totient is φ = 61243776.

The previous prime is 131619031. The next prime is 131619071. The reversal of 131619064 is 460916131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2859 + ... + 16474.

It is an arithmetic number, because the mean of its divisors is an integer number (8265285).

Almost surely, 2^131619064 is an apocalyptic number.

It is an amenable number.

131619064 is an abundant number, since it is smaller than the sum of its proper divisors (132870056).

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

131619064 is a wasteful number, since it uses less digits than its factorization.

131619064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19399 (or 19395 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 131619064 is about 11472.5352036941. The cubic root of 131619064 is about 508.6740695257.

The spelling of 131619064 in words is "one hundred thirty-one million, six hundred nineteen thousand, sixty-four".