154243230142 has 8 divisors (see below), whose sum is σ = 232031603736. Its totient is φ = 76899362232.

The previous prime is 154243230103. The next prime is 154243230157. The reversal of 154243230142 is 241032342451.

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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111125553 + ... + 111126940.

It is an arithmetic number, because the mean of its divisors is an integer number (29003950467).

Almost surely, 2^154243230142 is an apocalyptic number.

154243230142 is a deficient number, since it is larger than the sum of its proper divisors (77788373594).

154243230142 is a wasteful number, since it uses less digits than its factorization.

154243230142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222252842.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 154243230142 its reverse (241032342451), we get a palindrome (395275572593).

The spelling of 154243230142 in words is "one hundred fifty-four billion, two hundred forty-three million, two hundred thirty thousand, one hundred forty-two".