131530068 has 36 divisors (see below), whose sum is σ = 344795360. Its totient is φ = 43843032.

The previous prime is 131530039. The next prime is 131530093. The reversal of 131530068 is 860035131.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66688 + ... + 68631.

Almost surely, 2^131530068 is an apocalyptic number.

131530068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

131530068 is an abundant number, since it is smaller than the sum of its proper divisors (213265292).

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

131530068 is a wasteful number, since it uses less digits than its factorization.

131530068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135338 (or 135324 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 131530068 is about 11468.6558933469. The cubic root of 131530068 is about 508.5593947381.

Adding to 131530068 its reverse (860035131), we get a palindrome (991565199).

The spelling of 131530068 in words is "one hundred thirty-one million, five hundred thirty thousand, sixty-eight".