29141921 has 2 divisors, whose sum is σ = 29141922. Its totient is φ = 29141920.

The previous prime is 29141911. The next prime is 29141923. The reversal of 29141921 is 12914192.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26214400 + 2927521 = 5120^2 + 1711^2 .

It is a cyclic number.

It is not a de Polignac number, because 29141921 - 2¹⁰ = 29140897 is a prime.

Together with 29141923, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (29141923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14570960 + 14570961.

It is an arithmetic number, because the mean of its divisors is an integer number (14570961).

Almost surely, 2^29141921 is an apocalyptic number.

It is an amenable number.

29141921 is a deficient number, since it is larger than the sum of its proper divisors (1).

29141921 is an equidigital number, since it uses as much as digits as its factorization.

29141921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 29.

The square root of 29141921 is about 5398.3257589738. The cubic root of 29141921 is about 307.7320468497.

The spelling of 29141921 in words is "twenty-nine million, one hundred forty-one thousand, nine hundred twenty-one".