134861913 has 24 divisors (see below), whose sum is σ = 197933736. Its totient is φ = 88473600.

The previous prime is 134861891. The next prime is 134861921. The reversal of 134861913 is 319168431.

134861913 is a `hidden beast` number, since 1 + 34 + 8 + 619 + 1 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 60419529 + 74442384 = 7773^2 + 8628^2 .

It is not a de Polignac number, because 134861913 - 2⁶ = 134861849 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (134861953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210073 + ... + 210713.

It is an arithmetic number, because the mean of its divisors is an integer number (8247239).

Almost surely, 2^134861913 is an apocalyptic number.

It is an amenable number.

134861913 is a deficient number, since it is larger than the sum of its proper divisors (63071823).

134861913 is a wasteful number, since it uses less digits than its factorization.

134861913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985 (or 982 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 134861913 is about 11613.0061999467. The cubic root of 134861913 is about 512.8178165937.

The spelling of 134861913 in words is "one hundred thirty-four million, eight hundred sixty-one thousand, nine hundred thirteen".