129703226 has 16 divisors (see below), whose sum is σ = 197728128.
Its totient is φ = 63798000.
The previous prime is 129703207. The next prime is 129703247. The reversal of 129703226 is 622307921.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 129703192 and 129703201.
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, 98891 + ... + 100193.
It is an arithmetic number, because the mean of its divisors is an integer number (12358008).
Almost surely, 2129703226 is an apocalyptic number.
129703226 is a deficient number, since it is larger than the sum of its proper divisors (68024902).
129703226 is a wasteful number, since it uses less digits than its factorization.
129703226 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2077.
The product of its (nonzero) digits is 9072, while the sum is 32.
The square root of 129703226 is about 11388.7324141012.
The cubic root of 129703226 is about 506.1939218278.
The spelling of 129703226 in words is "one hundred twenty-nine million, seven hundred three thousand, two hundred twenty-six".