29131141 has 4 divisors (see below), whose sum is σ = 31372012. Its totient is φ = 26890272.

The previous prime is 29131111. The next prime is 29131163. The reversal of 29131141 is 14113192.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1147041 + 27984100 = 1071^2 + 5290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29131141 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 (29131111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1120416 + ... + 1120441.

It is an arithmetic number, because the mean of its divisors is an integer number (7843003).

Almost surely, 2^29131141 is an apocalyptic number.

It is an amenable number.

29131141 is a deficient number, since it is larger than the sum of its proper divisors (2240871).

29131141 is a wasteful number, since it uses less digits than its factorization.

29131141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240870.

The product of its digits is 216, while the sum is 22.

The square root of 29131141 is about 5397.3272089063. The cubic root of 29131141 is about 307.6940973886.

The spelling of 29131141 in words is "twenty-nine million, one hundred thirty-one thousand, one hundred forty-one".