131244004 has 6 divisors (see below), whose sum is σ = 229677014. Its totient is φ = 65622000.

The previous prime is 131243941. The next prime is 131244011. The reversal of 131244004 is 400442131.

131244004 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 118853604 + 12390400 = 10902^2 + 3520^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16405497 + ... + 16405504.

Almost surely, 2^131244004 is an apocalyptic number.

It is an amenable number.

131244004 is a deficient number, since it is larger than the sum of its proper divisors (98433010).

131244004 is a wasteful number, since it uses less digits than its factorization.

131244004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32811005 (or 32811003 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 131244004 is about 11456.1775475068. The cubic root of 131244004 is about 508.1904394800.

Adding to 131244004 its reverse (400442131), we get a palindrome (531686135).

The spelling of 131244004 in words is "one hundred thirty-one million, two hundred forty-four thousand, four".