154245242454431 has 16 divisors (see below), whose sum is σ = 168676648715520. Its totient is φ = 140414176842240.

The previous prime is 154245242454361. The next prime is 154245242454437. The reversal of 154245242454431 is 134454242542451.

It is a cyclic number.

It is not a de Polignac number, because 154245242454431 - 2²⁶ = 154245175345567 is a prime.

It is a super-2 number, since 2×154245242454431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 154245242454431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154245242454437) 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 15 ways as a sum of consecutive naturals, for example, 76977116 + ... + 78955473.

It is an arithmetic number, because the mean of its divisors is an integer number (10542290544720).

Almost surely, 2^{154245242454431} is an apocalyptic number.

154245242454431 is a deficient number, since it is larger than the sum of its proper divisors (14431406261089).

154245242454431 is a wasteful number, since it uses less digits than its factorization.

154245242454431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155934514.

The product of its digits is 12288000, while the sum is 50.

Adding to 154245242454431 its reverse (134454242542451), we get a palindrome (288699484996882).

The spelling of 154245242454431 in words is "one hundred fifty-four trillion, two hundred forty-five billion, two hundred forty-two million, four hundred fifty-four thousand, four hundred thirty-one".