134581138 has 8 divisors (see below), whose sum is σ = 203461632. Its totient is φ = 66760596.

The previous prime is 134581133. The next prime is 134581177. The reversal of 134581138 is 831185431.

It is a happy number.

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

It is a super-2 number, since 2×134581138² = 36224165410750088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (134581133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264670 + ... + 265177.

It is an arithmetic number, because the mean of its divisors is an integer number (25432704).

Almost surely, 2^134581138 is an apocalyptic number.

134581138 is a deficient number, since it is larger than the sum of its proper divisors (68880494).

134581138 is a wasteful number, since it uses less digits than its factorization.

134581138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529976.

The product of its digits is 11520, while the sum is 34.

The square root of 134581138 is about 11600.9110849105. The cubic root of 134581138 is about 512.4616832745.

The spelling of 134581138 in words is "one hundred thirty-four million, five hundred eighty-one thousand, one hundred thirty-eight".