154040203255145 has 16 divisors (see below), whose sum is σ = 187083830666880. Its totient is φ = 121741906343424.

The previous prime is 154040203255079. The next prime is 154040203255219. The reversal of 154040203255145 is 541552302040451.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154040203255145 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 725177 + ... + 17567193.

It is an arithmetic number, because the mean of its divisors is an integer number (11692739416680).

Almost surely, 2^{154040203255145} is an apocalyptic number.

It is an amenable number.

154040203255145 is a deficient number, since it is larger than the sum of its proper divisors (33043627411735).

154040203255145 is a wasteful number, since it uses less digits than its factorization.

154040203255145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16864144.

The product of its (nonzero) digits is 480000, while the sum is 41.

Adding to 154040203255145 its reverse (541552302040451), we get a palindrome (695592505295596).

The spelling of 154040203255145 in words is "one hundred fifty-four trillion, forty billion, two hundred three million, two hundred fifty-five thousand, one hundred forty-five".