134077581 has 24 divisors (see below), whose sum is σ = 212696640. Its totient is φ = 80712000.

The previous prime is 134077577. The next prime is 134077613. The reversal of 134077581 is 185770431.

134077581 is a `hidden beast` number, since 1 + 3 + 4 + 0 + 77 + 581 = 666.

It is not a de Polignac number, because 134077581 - 2² = 134077577 is a prime.

It is a super-2 number, since 2×134077581² = 35953595453623122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134077561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10465 + ... + 19433.

It is an arithmetic number, because the mean of its divisors is an integer number (8862360).

Almost surely, 2^134077581 is an apocalyptic number.

134077581 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

134077581 is a deficient number, since it is larger than the sum of its proper divisors (78619059).

134077581 is a wasteful number, since it uses less digits than its factorization.

134077581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9137 (or 9134 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 134077581 is about 11579.1874067225. The cubic root of 134077581 is about 511.8217318119.

The spelling of 134077581 in words is "one hundred thirty-four million, seventy-seven thousand, five hundred eighty-one".