29945213 has 2 divisors, whose sum is σ = 29945214. Its totient is φ = 29945212.

The previous prime is 29945191. The next prime is 29945221. The reversal of 29945213 is 31254992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29019769 + 925444 = 5387^2 + 962^2 .

It is a cyclic number.

It is not a de Polignac number, because 29945213 - 2¹⁶ = 29879677 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29945233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14972606 + 14972607.

It is an arithmetic number, because the mean of its divisors is an integer number (14972607).

Almost surely, 2^29945213 is an apocalyptic number.

It is an amenable number.

29945213 is a deficient number, since it is larger than the sum of its proper divisors (1).

29945213 is an equidigital number, since it uses as much as digits as its factorization.

29945213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 35.

The square root of 29945213 is about 5472.2219435984. The cubic root of 29945213 is about 310.5339842812.

The spelling of 29945213 in words is "twenty-nine million, nine hundred forty-five thousand, two hundred thirteen".