129343790 has 16 divisors (see below), whose sum is σ = 236636640. Its totient is φ = 50889120.

The previous prime is 129343787. The next prime is 129343793. The reversal of 129343790 is 97343921.

It is an interprime number because it is at equal distance from previous prime (129343787) and next prime (129343793).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129343793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105410 + ... + 106629.

It is an arithmetic number, because the mean of its divisors is an integer number (14789790).

Almost surely, 2^129343790 is an apocalyptic number.

129343790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129343790 is a deficient number, since it is larger than the sum of its proper divisors (107292850).

129343790 is a wasteful number, since it uses less digits than its factorization.

129343790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212107.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 129343790 is about 11372.9411323545. The cubic root of 129343790 is about 505.7258978819.

The spelling of 129343790 in words is "one hundred twenty-nine million, three hundred forty-three thousand, seven hundred ninety".