29101481 has 2 divisors, whose sum is σ = 29101482. Its totient is φ = 29101480.

The previous prime is 29101477. The next prime is 29101493. The reversal of 29101481 is 18410192.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26265625 + 2835856 = 5125^2 + 1684^2 .

It is a cyclic number.

It is not a de Polignac number, because 29101481 - 2² = 29101477 is a prime.

It is a super-2 number, since 2×29101481² = 1693792392786722, which contains 22 as substring.

It is a Chen prime.

It is equal to p_1805561 and since 29101481 and 1805561 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29101481.

It is not a weakly prime, because it can be changed into another prime (29101421) 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, 14550740 + 14550741.

It is an arithmetic number, because the mean of its divisors is an integer number (14550741).

Almost surely, 2^29101481 is an apocalyptic number.

It is an amenable number.

29101481 is a deficient number, since it is larger than the sum of its proper divisors (1).

29101481 is an equidigital number, since it uses as much as digits as its factorization.

29101481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 29101481 is about 5394.5788528856. The cubic root of 29101481 is about 307.5896352259.

The spelling of 29101481 in words is "twenty-nine million, one hundred one thousand, four hundred eighty-one".