131200004 has 48 divisors (see below), whose sum is σ = 259980672. Its totient is φ = 57480192.

The previous prime is 131199989. The next prime is 131200007. The reversal of 131200004 is 400002131.

It is a happy number.

131200004 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (131200007) 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 15 ways as a sum of consecutive naturals, for example, 194612 + ... + 195284.

It is an arithmetic number, because the mean of its divisors is an integer number (5416264).

Almost surely, 2^131200004 is an apocalyptic number.

It is an amenable number.

131200004 is a deficient number, since it is larger than the sum of its proper divisors (128780668).

131200004 is a wasteful number, since it uses less digits than its factorization.

131200004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876 (or 874 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 131200004 is about 11454.2570252287. The cubic root of 131200004 is about 508.1336422730.

Adding to 131200004 its reverse (400002131), we get a palindrome (531202135).

The spelling of 131200004 in words is "one hundred thirty-one million, two hundred thousand, four".