131061047 has 4 divisors (see below), whose sum is σ = 141142680. Its totient is φ = 120979416.

The previous prime is 131061023. The next prime is 131061131. The reversal of 131061047 is 740160131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131061047 - 2⁸ = 131060791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131061247) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5040797 + ... + 5040822.

It is an arithmetic number, because the mean of its divisors is an integer number (35285670).

Almost surely, 2^131061047 is an apocalyptic number.

131061047 is a deficient number, since it is larger than the sum of its proper divisors (10081633).

131061047 is a wasteful number, since it uses less digits than its factorization.

131061047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10081632.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 131061047 is about 11448.1896822161. The cubic root of 131061047 is about 507.9541868186.

The spelling of 131061047 in words is "one hundred thirty-one million, sixty-one thousand, forty-seven".