39216129 has 16 divisors (see below), whose sum is σ = 54014400. Its totient is φ = 25292736.

The previous prime is 39216119. The next prime is 39216143. The reversal of 39216129 is 92161293.

It is not a de Polignac number, because 39216129 - 2⁵ = 39216097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39216129.

It is not an unprimeable number, because it can be changed into a prime (39216119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12667 + ... + 15455.

It is an arithmetic number, because the mean of its divisors is an integer number (3375900).

Almost surely, 2^39216129 is an apocalyptic number.

It is an amenable number.

39216129 is a deficient number, since it is larger than the sum of its proper divisors (14798271).

39216129 is a wasteful number, since it uses less digits than its factorization.

39216129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2944.

The product of its digits is 5832, while the sum is 33.

The square root of 39216129 is about 6262.2782595474. The cubic root of 39216129 is about 339.7464343566.

The spelling of 39216129 in words is "thirty-nine million, two hundred sixteen thousand, one hundred twenty-nine".