154252235121042 has 8 divisors (see below), whose sum is σ = 308504470242096. Its totient is φ = 51417411707012.

The previous prime is 154252235121037. The next prime is 154252235121113. The reversal of 154252235121042 is 240121532252451.

It is a happy number.

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

154252235121042 is an admirable 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, 12854352926748 + ... + 12854352926759.

It is an arithmetic number, because the mean of its divisors is an integer number (38563058780262).

Almost surely, 2^{154252235121042} is an apocalyptic number.

154252235121042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154252235121042 is a wasteful number, since it uses less digits than its factorization.

154252235121042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25708705853512.

The product of its (nonzero) digits is 192000, while the sum is 39.

Adding to 154252235121042 its reverse (240121532252451), we get a palindrome (394373767373493).

The spelling of 154252235121042 in words is "one hundred fifty-four trillion, two hundred fifty-two billion, two hundred thirty-five million, one hundred twenty-one thousand, forty-two".