131213061 has 32 divisors (see below), whose sum is σ = 223499520. Its totient is φ = 74526912.

The previous prime is 131213053. The next prime is 131213087. The reversal of 131213061 is 160312131.

It is not a de Polignac number, because 131213061 - 2³ = 131213053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131213261) 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 31 ways as a sum of consecutive naturals, for example, 30691 + ... + 34703.

It is an arithmetic number, because the mean of its divisors is an integer number (6984360).

Almost surely, 2^131213061 is an apocalyptic number.

It is an amenable number.

131213061 is a deficient number, since it is larger than the sum of its proper divisors (92286459).

131213061 is a wasteful number, since it uses less digits than its factorization.

131213061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4202 (or 4196 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 131213061 is about 11454.8269738133. The cubic root of 131213061 is about 508.1504981690.

Adding to 131213061 its reverse (160312131), we get a palindrome (291525192).

The spelling of 131213061 in words is "one hundred thirty-one million, two hundred thirteen thousand, sixty-one".