29113261 has 2 divisors, whose sum is σ = 29113262. Its totient is φ = 29113260.

The previous prime is 29113243. The next prime is 29113291. The reversal of 29113261 is 16231192.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21855625 + 7257636 = 4675^2 + 2694^2 .

It is a cyclic number.

It is not a de Polignac number, because 29113261 - 2⁵ = 29113229 is a prime.

It is equal to p_1806253 and since 29113261 and 1806253 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29113211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14556630 + 14556631.

It is an arithmetic number, because the mean of its divisors is an integer number (14556631).

Almost surely, 2^29113261 is an apocalyptic number.

It is an amenable number.

29113261 is a deficient number, since it is larger than the sum of its proper divisors (1).

29113261 is an equidigital number, since it uses as much as digits as its factorization.

29113261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 25.

The square root of 29113261 is about 5395.6705792700. The cubic root of 29113261 is about 307.6311327371.

The spelling of 29113261 in words is "twenty-nine million, one hundred thirteen thousand, two hundred sixty-one".