39134729 has 2 divisors, whose sum is σ = 39134730. Its totient is φ = 39134728.

The previous prime is 39134713. The next prime is 39134761. The reversal of 39134729 is 92743193.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19598329 + 19536400 = 4427^2 + 4420^2 .

It is an emirp because it is prime and its reverse (92743193) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39134729 - 2⁴ = 39134713 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 39134692 and 39134701.

It is not a weakly prime, because it can be changed into another prime (39136729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19567364 + 19567365.

It is an arithmetic number, because the mean of its divisors is an integer number (19567365).

Almost surely, 2^39134729 is an apocalyptic number.

It is an amenable number.

39134729 is a deficient number, since it is larger than the sum of its proper divisors (1).

39134729 is an equidigital number, since it uses as much as digits as its factorization.

39134729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 38.

The square root of 39134729 is about 6255.7756513481. The cubic root of 39134729 is about 339.5112036230.

The spelling of 39134729 in words is "thirty-nine million, one hundred thirty-four thousand, seven hundred twenty-nine".