129822370 has 32 divisors (see below), whose sum is σ = 249908976. Its totient is φ = 48384000.

The previous prime is 129822367. The next prime is 129822377. The reversal of 129822370 is 73228921.

129822370 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 93954249 + 35868121 = 9693^2 + 5989^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (129822377) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13390 + ... + 20950.

Almost surely, 2^129822370 is an apocalyptic number.

129822370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129822370 is a deficient number, since it is larger than the sum of its proper divisors (120086606).

129822370 is a wasteful number, since it uses less digits than its factorization.

129822370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7686.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 129822370 is about 11393.9619974792. The cubic root of 129822370 is about 506.3488691723.

The spelling of 129822370 in words is "one hundred twenty-nine million, eight hundred twenty-two thousand, three hundred seventy".