129788345 has 8 divisors (see below), whose sum is σ = 157622976. Its totient is φ = 102579376.

The previous prime is 129788327. The next prime is 129788363. The reversal of 129788345 is 543887921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (129788327) and next prime (129788363).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129788345 - 2¹⁶ = 129722809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129788345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155957 + ... + 156786.

It is an arithmetic number, because the mean of its divisors is an integer number (19702872).

Almost surely, 2^129788345 is an apocalyptic number.

It is an amenable number.

129788345 is a deficient number, since it is larger than the sum of its proper divisors (27834631).

129788345 is an equidigital number, since it uses as much as digits as its factorization.

129788345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312831.

The product of its digits is 483840, while the sum is 47.

The square root of 129788345 is about 11392.4687842451. The cubic root of 129788345 is about 506.3046291706.

The spelling of 129788345 in words is "one hundred twenty-nine million, seven hundred eighty-eight thousand, three hundred forty-five".