131526230004 has 72 divisors (see below), whose sum is σ = 369241998720. Its totient is φ = 40469603616.

The previous prime is 131526229979. The next prime is 131526230009. The reversal of 131526230004 is 400032625131.

131526230004 is a `hidden beast` number, since 1 + 31 + 5 + 2 + 623 + 0 + 0 + 0 + 4 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 131526230004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131526230009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3584812 + ... + 3621315.

Almost surely, 2^131526230004 is an apocalyptic number.

It is an amenable number.

131526230004 is an abundant number, since it is smaller than the sum of its proper divisors (237715768716).

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

131526230004 is a wasteful number, since it uses less digits than its factorization.

131526230004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7206166 (or 7206145 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 131526230004 its reverse (400032625131), we get a palindrome (531558855135).

The spelling of 131526230004 in words is "one hundred thirty-one billion, five hundred twenty-six million, two hundred thirty thousand, four".