131040729 has 24 divisors (see below), whose sum is σ = 198095040. Its totient is φ = 83315232.

The previous prime is 131040727. The next prime is 131040757. The reversal of 131040729 is 927040131.

It is not a de Polignac number, because 131040729 - 2¹ = 131040727 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131040727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90987 + ... + 92415.

It is an arithmetic number, because the mean of its divisors is an integer number (8253960).

Almost surely, 2^131040729 is an apocalyptic number.

It is an amenable number.

131040729 is a deficient number, since it is larger than the sum of its proper divisors (67054311).

131040729 is a wasteful number, since it uses less digits than its factorization.

131040729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901 (or 1898 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 131040729 is about 11447.3022586110. The cubic root of 131040729 is about 507.9279365920.

It can be divided in two parts, 131040 and 729, that added together give a square (131769 = 363²).

The spelling of 131040729 in words is "one hundred thirty-one million, forty thousand, seven hundred twenty-nine".