154105156240242 has 16 divisors (see below), whose sum is σ = 308718072475392. Its totient is φ = 51283758747600.

The previous prime is 154105156240229. The next prime is 154105156240247. The reversal of 154105156240242 is 242042651501451.

It is a junction number, because it is equal to n+sod(n) for n = 154105156240194 and 154105156240203.

It is not an unprimeable number, because it can be changed into a prime (154105156240247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21156662509 + ... + 21156669792.

It is an arithmetic number, because the mean of its divisors is an integer number (19294879529712).

Almost surely, 2^{154105156240242} is an apocalyptic number.

154105156240242 is an abundant number, since it is smaller than the sum of its proper divisors (154612916235150).

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

154105156240242 is a wasteful number, since it uses less digits than its factorization.

154105156240242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42313332913.

The product of its (nonzero) digits is 384000, while the sum is 42.

The spelling of 154105156240242 in words is "one hundred fifty-four trillion, one hundred five billion, one hundred fifty-six million, two hundred forty thousand, two hundred forty-two".