129041739 has 12 divisors (see below), whose sum is σ = 187105776. Its totient is φ = 85699152.

The previous prime is 129041699. The next prime is 129041767. The reversal of 129041739 is 937140921.

It is not a de Polignac number, because 129041739 - 2¹⁷ = 128910667 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (129041789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24892 + ... + 29625.

It is an arithmetic number, because the mean of its divisors is an integer number (15592148).

Almost surely, 2^129041739 is an apocalyptic number.

129041739 is a deficient number, since it is larger than the sum of its proper divisors (58064037).

129041739 is a wasteful number, since it uses less digits than its factorization.

129041739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54786 (or 54783 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 129041739 is about 11359.6540000125. The cubic root of 129041739 is about 505.3319243867.

The spelling of 129041739 in words is "one hundred twenty-nine million, forty-one thousand, seven hundred thirty-nine".