1172681429 has 2 divisors, whose sum is σ = 1172681430. Its totient is φ = 1172681428.

The previous prime is 1172681413. The next prime is 1172681431. The reversal of 1172681429 is 9241862711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 856908529 + 315772900 = 29273^2 + 17770^2 .

It is a cyclic number.

It is not a de Polignac number, because 1172681429 - 2⁴ = 1172681413 is a prime.

Together with 1172681431, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1172681459) 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 as a sum of consecutive naturals, namely, 586340714 + 586340715.

It is an arithmetic number, because the mean of its divisors is an integer number (586340715).

Almost surely, 2^1172681429 is an apocalyptic number.

It is an amenable number.

1172681429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1172681429 is an equidigital number, since it uses as much as digits as its factorization.

1172681429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 41.

The square root of 1172681429 is about 34244.4364678410. The cubic root of 1172681429 is about 1054.5326138851.

The spelling of 1172681429 in words is "one billion, one hundred seventy-two million, six hundred eighty-one thousand, four hundred twenty-nine".