154642231342423 has 4 divisors (see below), whose sum is σ = 168700616009928. Its totient is φ = 140583846674920.

The previous prime is 154642231342397. The next prime is 154642231342429. The reversal of 154642231342423 is 324243132246451.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 154642231342423 - 2¹³ = 154642231334231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154642231342429) 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, 7029192333736 + ... + 7029192333757.

It is an arithmetic number, because the mean of its divisors is an integer number (42175154002482).

Almost surely, 2^{154642231342423} is an apocalyptic number.

154642231342423 is a deficient number, since it is larger than the sum of its proper divisors (14058384667505).

154642231342423 is a wasteful number, since it uses less digits than its factorization.

154642231342423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14058384667504.

The product of its digits is 3317760, while the sum is 46.

Adding to 154642231342423 its reverse (324243132246451), we get a palindrome (478885363588874).

The spelling of 154642231342423 in words is "one hundred fifty-four trillion, six hundred forty-two billion, two hundred thirty-one million, three hundred forty-two thousand, four hundred twenty-three".