134442021142154 has 16 divisors (see below), whose sum is σ = 225361791539136. Its totient is φ = 59619521570400.

The previous prime is 134442021142151. The next prime is 134442021142171. The reversal of 134442021142154 is 451241120244431.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (134442021142151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74524401062 + ... + 74524402865.

It is an arithmetic number, because the mean of its divisors is an integer number (14085111971196).

Almost surely, 2^{134442021142154} is an apocalyptic number.

134442021142154 is a deficient number, since it is larger than the sum of its proper divisors (90919770396982).

134442021142154 is a wasteful number, since it uses less digits than its factorization.

134442021142154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149048803981.

The product of its (nonzero) digits is 122880, while the sum is 38.

Adding to 134442021142154 its reverse (451241120244431), we get a palindrome (585683141386585).

The spelling of 134442021142154 in words is "one hundred thirty-four trillion, four hundred forty-two billion, twenty-one million, one hundred forty-two thousand, one hundred fifty-four".