1202129 has 2 divisors, whose sum is σ = 1202130. Its totient is φ = 1202128.

The previous prime is 1202107. The next prime is 1202147. The reversal of 1202129 is 9212021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 719104 + 483025 = 848^2 + 695^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202129 - 2⁸ = 1201873 is a prime.

It is a super-2 number, since 2×1202129² = 2890228265282, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1202029) 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 as a sum of consecutive naturals, namely, 601064 + 601065.

It is an arithmetic number, because the mean of its divisors is an integer number (601065).

2^1202129 is an apocalyptic number.

It is an amenable number.

1202129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202129 is an equidigital number, since it uses as much as digits as its factorization.

1202129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1202129 is about 1096.4164354843. The cubic root of 1202129 is about 106.3286642364.

It can be divided in two parts, 1202 and 129, that added together give a palindrome (1331).

The spelling of 1202129 in words is "one million, two hundred two thousand, one hundred twenty-nine".