131004146 has 24 divisors (see below), whose sum is σ = 246175020. Its totient is φ = 51825312.

The previous prime is 131004089. The next prime is 131004191. The reversal of 131004146 is 641400131.

It can be written as a sum of positive squares in 2 ways, for example, as 113656921 + 17347225 = 10661^2 + 4165^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50141 + ... + 52688.

Almost surely, 2^131004146 is an apocalyptic number.

131004146 is a deficient number, since it is larger than the sum of its proper divisors (115170874).

131004146 is a wasteful number, since it uses less digits than its factorization.

131004146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102858 (or 102851 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 131004146 is about 11445.7042596775. The cubic root of 131004146 is about 507.8806656474.

Adding to 131004146 its reverse (641400131), we get a palindrome (772404277).

The spelling of 131004146 in words is "one hundred thirty-one million, four thousand, one hundred forty-six".