29148121 has 2 divisors, whose sum is σ = 29148122. Its totient is φ = 29148120.

The previous prime is 29148113. The next prime is 29148143. The reversal of 29148121 is 12184192.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25613721 + 3534400 = 5061^2 + 1880^2 .

It is a cyclic number.

It is not a de Polignac number, because 29148121 - 2³ = 29148113 is a prime.

It is a super-2 number, since 2×29148121² = 1699225915661282, which contains 22 as substring.

It is equal to p_1808254 and since 29148121 and 1808254 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 29148121.

It is not a weakly prime, because it can be changed into another prime (29148101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14574060 + 14574061.

It is an arithmetic number, because the mean of its divisors is an integer number (14574061).

Almost surely, 2^29148121 is an apocalyptic number.

It is an amenable number.

29148121 is a deficient number, since it is larger than the sum of its proper divisors (1).

29148121 is an equidigital number, since it uses as much as digits as its factorization.

29148121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 28.

The square root of 29148121 is about 5398.8999805516. The cubic root of 29148121 is about 307.7538688315.

The spelling of 29148121 in words is "twenty-nine million, one hundred forty-eight thousand, one hundred twenty-one".