134220505 has 8 divisors (see below), whose sum is σ = 161134272. Its totient is φ = 107329968.

The previous prime is 134220487. The next prime is 134220517. The reversal of 134220505 is 505022431.

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

It is a cyclic number.

It is not a de Polignac number, because 134220505 - 2⁵ = 134220473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11724 + ... + 20146.

It is an arithmetic number, because the mean of its divisors is an integer number (20141784).

Almost surely, 2^134220505 is an apocalyptic number.

It is an amenable number.

134220505 is a deficient number, since it is larger than the sum of its proper divisors (26913767).

134220505 is an equidigital number, since it uses as much as digits as its factorization.

134220505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11615.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 134220505 is about 11585.3573531419. The cubic root of 134220505 is about 512.0035311137.

Adding to 134220505 its reverse (505022431), we get a palindrome (639242936).

The spelling of 134220505 in words is "one hundred thirty-four million, two hundred twenty thousand, five hundred five".