131505914 has 16 divisors (see below), whose sum is σ = 209473128. Its totient is φ = 61704192.

The previous prime is 131505887. The next prime is 131505919. The reversal of 131505914 is 419505131.

It can be written as a sum of positive squares in 4 ways, for example, as 124657225 + 6848689 = 11165^2 + 2617^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131505919) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 6524 + ... + 17480.

Almost surely, 2^131505914 is an apocalyptic number.

131505914 is a deficient number, since it is larger than the sum of its proper divisors (77967214).

131505914 is a wasteful number, since it uses less digits than its factorization.

131505914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11329.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 131505914 is about 11467.6028009345. The cubic root of 131505914 is about 508.5282624508.

The spelling of 131505914 in words is "one hundred thirty-one million, five hundred five thousand, nine hundred fourteen".