131345012 has 6 divisors (see below), whose sum is σ = 229853778. Its totient is φ = 65672504.

The previous prime is 131344987. The next prime is 131345029. The reversal of 131345012 is 210543131.

It can be written as a sum of positive squares in only one way, i.e., 127825636 + 3519376 = 11306^2 + 1876^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16418123 + ... + 16418130.

It is an arithmetic number, because the mean of its divisors is an integer number (38308963).

Almost surely, 2^131345012 is an apocalyptic number.

It is an amenable number.

131345012 is a deficient number, since it is larger than the sum of its proper divisors (98508766).

131345012 is a wasteful number, since it uses less digits than its factorization.

131345012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32836257 (or 32836255 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 131345012 is about 11460.5851508551. The cubic root of 131345012 is about 508.3207772108.

Adding to 131345012 its reverse (210543131), we get a palindrome (341888143).

The spelling of 131345012 in words is "one hundred thirty-one million, three hundred forty-five thousand, twelve".