29139317 has 2 divisors, whose sum is σ = 29139318. Its totient is φ = 29139316.

The previous prime is 29139307. The next prime is 29139353. The reversal of 29139317 is 71393192.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29008996 + 130321 = 5386^2 + 361^2 .

It is a cyclic number.

It is not a de Polignac number, because 29139317 - 2⁴ = 29139301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29139307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14569658 + 14569659.

It is an arithmetic number, because the mean of its divisors is an integer number (14569659).

Almost surely, 2^29139317 is an apocalyptic number.

It is an amenable number.

29139317 is a deficient number, since it is larger than the sum of its proper divisors (1).

29139317 is an equidigital number, since it uses as much as digits as its factorization.

29139317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10206, while the sum is 35.

The square root of 29139317 is about 5398.0845676962. The cubic root of 29139317 is about 307.7228806945.

It can be divided in two parts, 2 and 9139317, that added together give a palindrome (9139319).

The spelling of 29139317 in words is "twenty-nine million, one hundred thirty-nine thousand, three hundred seventeen".