134337981 has 8 divisors (see below), whose sum is σ = 179701984. Its totient is φ = 89266320.

The previous prime is 134337971. The next prime is 134337991. The reversal of 134337981 is 189733431.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (134337971) and next prime (134337991).

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

It is not a de Polignac number, because 134337981 - 2⁵ = 134337949 is a prime.

It is a super-2 number, since 2×134337981² = 36093386278312722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134337901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72010 + ... + 73851.

It is an arithmetic number, because the mean of its divisors is an integer number (22462748).

Almost surely, 2^134337981 is an apocalyptic number.

It is an amenable number.

134337981 is a deficient number, since it is larger than the sum of its proper divisors (45364003).

134337981 is a wasteful number, since it uses less digits than its factorization.

134337981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146171.

The product of its digits is 54432, while the sum is 39.

The square root of 134337981 is about 11590.4262648101. The cubic root of 134337981 is about 512.1528639528.

The spelling of 134337981 in words is "one hundred thirty-four million, three hundred thirty-seven thousand, nine hundred eighty-one".