154205223432345 has 96 divisors (see below), whose sum is σ = 276982702424064. Its totient is φ = 79311299558400.

The previous prime is 154205223432331. The next prime is 154205223432349. The reversal of 154205223432345 is 543234322502451.

It is a happy number.

154205223432345 is a `hidden beast` number, since 1 + 5 + 4 + 2 + 0 + 52 + 234 + 323 + 45 = 666.

It is not a de Polignac number, because 154205223432345 - 2¹⁴ = 154205223415961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 154205223432345.

It is not an unprimeable number, because it can be changed into a prime (154205223432349) 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 95 ways as a sum of consecutive naturals, for example, 62285139 + ... + 64713591.

It is an arithmetic number, because the mean of its divisors is an integer number (2885236483584).

Almost surely, 2^{154205223432345} is an apocalyptic number.

154205223432345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

154205223432345 is a deficient number, since it is larger than the sum of its proper divisors (122777478991719).

154205223432345 is a wasteful number, since it uses less digits than its factorization.

154205223432345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428903 (or 2428900 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 45.

Adding to 154205223432345 its reverse (543234322502451), we get a palindrome (697439545934796).

The spelling of 154205223432345 in words is "one hundred fifty-four trillion, two hundred five billion, two hundred twenty-three million, four hundred thirty-two thousand, three hundred forty-five".