129460 has 12 divisors (see below), whose sum is σ = 271908. Its totient is φ = 51776.

The previous prime is 129457. The next prime is 129461. The reversal of 129460 is 64921.

It can be written as a sum of positive squares in 2 ways, for example, as 34596 + 94864 = 186^2 + 308^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129461) 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 3 ways as a sum of consecutive naturals, for example, 3217 + ... + 3256.

It is an arithmetic number, because the mean of its divisors is an integer number (22659).

2¹²⁹⁴⁶⁰ is an apocalyptic number.

129460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129460 is an abundant number, since it is smaller than the sum of its proper divisors (142448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129460 is a wasteful number, since it uses less digits than its factorization.

129460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6482 (or 6480 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 129460 is about 359.8055030152. The cubic root of 129460 is about 50.5877310420.

It can be divided in two parts, 129 and 460, that multiplied together give a triangular number (59340 = T₃₄₄).

The spelling of 129460 in words is "one hundred twenty-nine thousand, four hundred sixty".