134768881 has 27 divisors (see below), whose sum is σ = 157364811. Its totient is φ = 115347024.

The previous prime is 134768839. The next prime is 134768897. The reversal of 134768881 is 188867431.

The square root of 134768881 is 11609.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 19936225 + 114832656 = 4465^2 + 10716^2 .

It is not a de Polignac number, because 134768881 - 2⁹ = 134768369 is a prime.

It is a super-2 number, since 2×134768881² = 36325302571984322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134768801) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2867400 + ... + 2867446.

Almost surely, 2^134768881 is an apocalyptic number.

134768881 is the 11609-th square number.

134768881 is the 5805-th centered octagonal number.

It is an amenable number.

134768881 is a deficient number, since it is larger than the sum of its proper divisors (22595930).

134768881 is an equidigital number, since it uses as much as digits as its factorization.

134768881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 79 counting only the distinct ones).

The product of its digits is 258048, while the sum is 46.

The cubic root of 134768881 is about 512.6998701685.

The spelling of 134768881 in words is "one hundred thirty-four million, seven hundred sixty-eight thousand, eight hundred eighty-one".