29331481 has 2 divisors, whose sum is σ = 29331482. Its totient is φ = 29331480.

The previous prime is 29331451. The next prime is 29331493. The reversal of 29331481 is 18413392.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22090000 + 7241481 = 4700^2 + 2691^2 .

It is a cyclic number.

It is not a de Polignac number, because 29331481 - 2⁷ = 29331353 is a prime.

It is a super-2 number, since 2×29331481² = 1720671555306722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (29331451) 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 as a sum of consecutive naturals, namely, 14665740 + 14665741.

It is an arithmetic number, because the mean of its divisors is an integer number (14665741).

Almost surely, 2^29331481 is an apocalyptic number.

It is an amenable number.

29331481 is a deficient number, since it is larger than the sum of its proper divisors (1).

29331481 is an equidigital number, since it uses as much as digits as its factorization.

29331481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The square root of 29331481 is about 5415.8545955371. The cubic root of 29331481 is about 308.3978421313.

The spelling of 29331481 in words is "twenty-nine million, three hundred thirty-one thousand, four hundred eighty-one".