129458 has 12 divisors (see below), whose sum is σ = 226062. Its totient is φ = 55440.

The previous prime is 129457. The next prime is 129461. The reversal of 129458 is 854921.

It can be written as a sum of positive squares in only one way, i.e., 82369 + 47089 = 287^2 + 217^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 129458.

It is not an unprimeable number, because it can be changed into a prime (129457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 563 + ... + 758.

2¹²⁹⁴⁵⁸ is an apocalyptic number.

129458 is a deficient number, since it is larger than the sum of its proper divisors (96604).

129458 is a wasteful number, since it uses less digits than its factorization.

129458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337 (or 1330 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 129458 is about 359.8027237251. The cubic root of 129458 is about 50.5874705343.

The spelling of 129458 in words is "one hundred twenty-nine thousand, four hundred fifty-eight".