29474565121 has 4 divisors (see below), whose sum is σ = 29805740100. Its totient is φ = 29143390144.

The previous prime is 29474565097. The next prime is 29474565149. The reversal of 29474565121 is 12156547492.

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 7794947521 + 21679617600 = 88289^2 + 147240^2 .

It is a cyclic number.

It is not a de Polignac number, because 29474565121 - 2⁷ = 29474564993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29474565821) 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, 165587356 + ... + 165587533.

It is an arithmetic number, because the mean of its divisors is an integer number (7451435025).

Almost surely, 2^29474565121 is an apocalyptic number.

It is an amenable number.

29474565121 is a deficient number, since it is larger than the sum of its proper divisors (331174979).

29474565121 is an equidigital number, since it uses as much as digits as its factorization.

29474565121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331174978.

The product of its digits is 604800, while the sum is 46.

It can be divided in two parts, 29474 and 565121, that added together give a triangular number (594595 = T₁₀₉₀).

The spelling of 29474565121 in words is "twenty-nine billion, four hundred seventy-four million, five hundred sixty-five thousand, one hundred twenty-one".