29119421 has 2 divisors, whose sum is σ = 29119422. Its totient is φ = 29119420.

The previous prime is 29119399. The next prime is 29119423. The reversal of 29119421 is 12491192.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16080100 + 13039321 = 4010^2 + 3611^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29119421 is a prime.

Together with 29119423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29119423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14559710 + 14559711.

It is an arithmetic number, because the mean of its divisors is an integer number (14559711).

Almost surely, 2^29119421 is an apocalyptic number.

It is an amenable number.

29119421 is a deficient number, since it is larger than the sum of its proper divisors (1).

29119421 is an equidigital number, since it uses as much as digits as its factorization.

29119421 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 29119421 is about 5396.2413771068. The cubic root of 29119421 is about 307.6528281670.

The spelling of 29119421 in words is "twenty-nine million, one hundred nineteen thousand, four hundred twenty-one".