129452743 has 8 divisors (see below), whose sum is σ = 148027040. Its totient is φ = 110898720.

The previous prime is 129452737. The next prime is 129452761. The reversal of 129452743 is 347254921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129452743 - 2¹⁷ = 129321671 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129453743) 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 in 7 ways as a sum of consecutive naturals, for example, 12853 + ... + 20593.

It is an arithmetic number, because the mean of its divisors is an integer number (18503380).

Almost surely, 2^129452743 is an apocalyptic number.

129452743 is a deficient number, since it is larger than the sum of its proper divisors (18574297).

129452743 is an equidigital number, since it uses as much as digits as its factorization.

129452743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10137.

The product of its digits is 60480, while the sum is 37.

The square root of 129452743 is about 11377.7301339063. The cubic root of 129452743 is about 505.8678577695.

The spelling of 129452743 in words is "one hundred twenty-nine million, four hundred fifty-two thousand, seven hundred forty-three".