270129 has 8 divisors (see below), whose sum is σ = 363520. Its totient is φ = 178416.

The previous prime is 270121. The next prime is 270131. The reversal of 270129 is 921072.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 270129 - 2³ = 270121 is a prime.

It is an Ulam number.

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

It is a Duffinian number.

270129 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (270121) 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, 27 + ... + 735.

It is an arithmetic number, because the mean of its divisors is an integer number (45440).

2²⁷⁰¹²⁹ is an apocalyptic number.

It is an amenable number.

270129 is a deficient number, since it is larger than the sum of its proper divisors (93391).

270129 is a wasteful number, since it uses less digits than its factorization.

270129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 270129 is about 519.7393577554. The cubic root of 270129 is about 64.6433324723.

The spelling of 270129 in words is "two hundred seventy thousand, one hundred twenty-nine".