29286121 has 4 divisors (see below), whose sum is σ = 31008852. Its totient is φ = 27563392.

The previous prime is 29286119. The next prime is 29286133. The reversal of 29286121 is 12168292.

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 27154521 + 2131600 = 5211^2 + 1460^2 .

It is not a de Polignac number, because 29286121 - 2¹ = 29286119 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29286421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 861340 + ... + 861373.

It is an arithmetic number, because the mean of its divisors is an integer number (7752213).

Almost surely, 2^29286121 is an apocalyptic number.

It is an amenable number.

29286121 is a deficient number, since it is larger than the sum of its proper divisors (1722731).

29286121 is a wasteful number, since it uses less digits than its factorization.

29286121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722730.

The product of its digits is 3456, while the sum is 31.

The square root of 29286121 is about 5411.6652705059. The cubic root of 29286121 is about 308.2387850027.

The spelling of 29286121 in words is "twenty-nine million, two hundred eighty-six thousand, one hundred twenty-one".