1223200929 has 16 divisors (see below), whose sum is σ = 1673098560. Its totient is φ = 794442240.

The previous prime is 1223200903. The next prime is 1223200961. The reversal of 1223200929 is 9290023221.

It is a happy number.

It is not a de Polignac number, because 1223200929 - 2²⁹ = 686330017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1223200896 and 1223200905.

It is not an unprimeable number, because it can be changed into a prime (1223200129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84169 + ... + 97625.

It is an arithmetic number, because the mean of its divisors is an integer number (104568660).

Almost surely, 2^1223200929 is an apocalyptic number.

It is an amenable number.

1223200929 is a deficient number, since it is larger than the sum of its proper divisors (449897631).

1223200929 is a wasteful number, since it uses less digits than its factorization.

1223200929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14240.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1223200929 is about 34974.2895424625. The cubic root of 1223200929 is about 1069.4634189110.

The spelling of 1223200929 in words is "one billion, two hundred twenty-three million, two hundred thousand, nine hundred twenty-nine".