154120632620542 has 8 divisors (see below), whose sum is σ = 264206798778096. Its totient is φ = 66051699694512.

The previous prime is 154120632620503. The next prime is 154120632620543. The reversal of 154120632620542 is 245026236021451.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154120632620543) by changing a digit.

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, 5504308307863 + ... + 5504308307890.

It is an arithmetic number, because the mean of its divisors is an integer number (33025849847262).

Almost surely, 2^{154120632620542} is an apocalyptic number.

154120632620542 is a deficient number, since it is larger than the sum of its proper divisors (110086166157554).

154120632620542 is a wasteful number, since it uses less digits than its factorization.

154120632620542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11008616615762.

The product of its (nonzero) digits is 691200, while the sum is 43.

Adding to 154120632620542 its reverse (245026236021451), we get a palindrome (399146868641993).

The spelling of 154120632620542 in words is "one hundred fifty-four trillion, one hundred twenty billion, six hundred thirty-two million, six hundred twenty thousand, five hundred forty-two".