134145442 has 8 divisors (see below), whose sum is σ = 202060800. Its totient is φ = 66791844.

The previous prime is 134145437. The next prime is 134145443. The reversal of 134145442 is 244541431.

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

It is a self number, because there is not a number n which added to its sum of digits gives 134145442.

It is not an unprimeable number, because it can be changed into a prime (134145443) 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, 139842 + ... + 140797.

It is an arithmetic number, because the mean of its divisors is an integer number (25257600).

Almost surely, 2^134145442 is an apocalyptic number.

134145442 is a deficient number, since it is larger than the sum of its proper divisors (67915358).

134145442 is a wasteful number, since it uses less digits than its factorization.

134145442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280880.

The product of its digits is 7680, while the sum is 28.

The square root of 134145442 is about 11582.1173366531. The cubic root of 134145442 is about 511.9080670917.

Adding to 134145442 its reverse (244541431), we get a palindrome (378686873).

The spelling of 134145442 in words is "one hundred thirty-four million, one hundred forty-five thousand, four hundred forty-two".