154242121342 has 8 divisors (see below), whose sum is σ = 232062165432. Its totient is φ = 76888066200.

The previous prime is 154242121333. The next prime is 154242121357. The reversal of 154242121342 is 243121242451.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116496409 + ... + 116497732.

It is an arithmetic number, because the mean of its divisors is an integer number (29007770679).

Almost surely, 2^154242121342 is an apocalyptic number.

154242121342 is a deficient number, since it is larger than the sum of its proper divisors (77820044090).

154242121342 is a wasteful number, since it uses less digits than its factorization.

154242121342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232994474.

The product of its digits is 15360, while the sum is 31.

Adding to 154242121342 its reverse (243121242451), we get a palindrome (397363363793).

The spelling of 154242121342 in words is "one hundred fifty-four billion, two hundred forty-two million, one hundred twenty-one thousand, three hundred forty-two".