29142089 has 6 divisors (see below), whose sum is σ = 29837466. Its totient is φ = 28462560.

The previous prime is 29142053. The next prime is 29142107. The reversal of 29142089 is 98024192.

It can be written as a sum of positive squares in only one way, i.e., 26183689 + 2958400 = 5117^2 + 1720^2 .

It is a de Polignac number, because none of the positive numbers 2^k-29142089 is a prime.

It is a super-2 number, since 2×29142089² = 1698522702567842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29142019) 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 5 ways as a sum of consecutive naturals, for example, 6032 + ... + 9729.

It is an arithmetic number, because the mean of its divisors is an integer number (4972911).

Almost surely, 2^29142089 is an apocalyptic number.

It is an amenable number.

29142089 is a deficient number, since it is larger than the sum of its proper divisors (695377).

29142089 is an equidigital number, since it uses as much as digits as its factorization.

29142089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15847 (or 15804 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 29142089 is about 5398.3413193313. The cubic root of 29142089 is about 307.7326381959.

The spelling of 29142089 in words is "twenty-nine million, one hundred forty-two thousand, eighty-nine".