129458605 has 16 divisors (see below), whose sum is σ = 162468864. Its totient is φ = 98841600.

The previous prime is 129458603. The next prime is 129458617. The reversal of 129458605 is 506854921.

It is not a de Polignac number, because 129458605 - 2¹ = 129458603 is a prime.

It is a super-5 number, since 5×129458605⁵ (a number of 42 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129458603) 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 15 ways as a sum of consecutive naturals, for example, 65380 + ... + 67330.

It is an arithmetic number, because the mean of its divisors is an integer number (10154304).

Almost surely, 2^129458605 is an apocalyptic number.

It is an amenable number.

129458605 is a deficient number, since it is larger than the sum of its proper divisors (33010259).

129458605 is a wasteful number, since it uses less digits than its factorization.

129458605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 129458605 is about 11377.9877394907. The cubic root of 129458605 is about 505.8754933812.

The spelling of 129458605 in words is "one hundred twenty-nine million, four hundred fifty-eight thousand, six hundred five".