134891242 has 8 divisors (see below), whose sum is σ = 202665600. Its totient is φ = 67336044.

The previous prime is 134891231. The next prime is 134891249. The reversal of 134891242 is 242198431.

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

It is a junction number, because it is equal to n+sod(n) for n = 134891198 and 134891207.

It is not an unprimeable number, because it can be changed into a prime (134891249) 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 3 ways as a sum of consecutive naturals, for example, 53242 + ... + 55717.

It is an arithmetic number, because the mean of its divisors is an integer number (25333200).

Almost surely, 2^134891242 is an apocalyptic number.

134891242 is a deficient number, since it is larger than the sum of its proper divisors (67774358).

134891242 is a wasteful number, since it uses less digits than its factorization.

134891242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109580.

The product of its digits is 13824, while the sum is 34.

The square root of 134891242 is about 11614.2688964911. The cubic root of 134891242 is about 512.8549887975.

The spelling of 134891242 in words is "one hundred thirty-four million, eight hundred ninety-one thousand, two hundred forty-two".