29240261 has 2 divisors, whose sum is σ = 29240262. Its totient is φ = 29240260.

The previous prime is 29240243. The next prime is 29240269. The reversal of 29240261 is 16204292.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27363361 + 1876900 = 5231^2 + 1370^2 .

It is a cyclic number.

It is not a de Polignac number, because 29240261 - 2¹⁴ = 29223877 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 29240261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29240269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14620130 + 14620131.

It is an arithmetic number, because the mean of its divisors is an integer number (14620131).

Almost surely, 2^29240261 is an apocalyptic number.

It is an amenable number.

29240261 is a deficient number, since it is larger than the sum of its proper divisors (1).

29240261 is an equidigital number, since it uses as much as digits as its factorization.

29240261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 29240261 is about 5407.4264673687. The cubic root of 29240261 is about 308.0778075477.

The spelling of 29240261 in words is "twenty-nine million, two hundred forty thousand, two hundred sixty-one".