131210004 has 24 divisors (see below), whose sum is σ = 313625088. Its totient is φ = 42669760.

The previous prime is 131209997. The next prime is 131210021. The reversal of 131210004 is 400012131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 132852 + ... + 133835.

It is an arithmetic number, because the mean of its divisors is an integer number (13067712).

Almost surely, 2^131210004 is an apocalyptic number.

It is an amenable number.

131210004 is an abundant number, since it is smaller than the sum of its proper divisors (182415084).

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

131210004 is a wasteful number, since it uses less digits than its factorization.

131210004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266735 (or 266733 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 131210004 is about 11454.6935358394. The cubic root of 131210004 is about 508.1465518440.

Adding to 131210004 its reverse (400012131), we get a palindrome (531222135).

The spelling of 131210004 in words is "one hundred thirty-one million, two hundred ten thousand, four".