134351281 has 9 divisors (see below), whose sum is σ = 137179371. Its totient is φ = 131581032.

The previous prime is 134351267. The next prime is 134351291. The reversal of 134351281 is 182153431.

It is a happy number.

The square root of 134351281 is 11591.

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., 122213025 + 12138256 = 11055^2 + 3484^2 .

It is not a de Polignac number, because 134351281 - 2⁵ = 134351249 is a prime.

It is a super-2 number, since 2×134351281² = 36100533412681922, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (2880) is a multiple of the sum of its prime divisors (240).

It is not an unprimeable number, because it can be changed into a prime (134351251) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 776511 + ... + 776683.

Almost surely, 2^134351281 is an apocalyptic number.

134351281 is the 11591-st square number.

134351281 is the 5796-th centered octagonal number.

It is an amenable number.

134351281 is a deficient number, since it is larger than the sum of its proper divisors (2828090).

134351281 is an frugal number, since it uses more digits than its factorization.

134351281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480 (or 240 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The cubic root of 134351281 is about 512.1697651256.

The spelling of 134351281 in words is "one hundred thirty-four million, three hundred fifty-one thousand, two hundred eighty-one".