1207129 has 16 divisors (see below), whose sum is σ = 1535616. Its totient is φ = 921600.

The previous prime is 1207123. The next prime is 1207133. The reversal of 1207129 is 9217021.

It is a cyclic number.

It is not a de Polignac number, because 1207129 - 2³ = 1207121 is a prime.

It is a Duffinian number.

1207129 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1207121) 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, 4569 + ... + 4825.

It is an arithmetic number, because the mean of its divisors is an integer number (95976).

2^1207129 is an apocalyptic number.

It is an amenable number.

1207129 is a deficient number, since it is larger than the sum of its proper divisors (328487).

1207129 is a wasteful number, since it uses less digits than its factorization.

1207129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 1207129 is about 1098.6942249780. The cubic root of 1207129 is about 106.4758774816.

It can be divided in two parts, 12071 and 29, that added together give a square (12100 = 110²).

The spelling of 1207129 in words is "one million, two hundred seven thousand, one hundred twenty-nine".