154105134205345 has 32 divisors (see below), whose sum is σ = 186358480308000. Its totient is φ = 122332526346240.

The previous prime is 154105134205343. The next prime is 154105134205381. The reversal of 154105134205345 is 543502431501451.

It can be written as a sum of positive squares in 16 ways, for example, as 123488300775841 + 30616833429504 = 11112529^2 + 5533248^2 .

It is not a de Polignac number, because 154105134205345 - 2¹ = 154105134205343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (154105134205343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 771703171 + ... + 771902839.

It is an arithmetic number, because the mean of its divisors is an integer number (5823702509625).

Almost surely, 2^{154105134205345} is an apocalyptic number.

It is an amenable number.

154105134205345 is a deficient number, since it is larger than the sum of its proper divisors (32253346102655).

154105134205345 is a wasteful number, since it uses less digits than its factorization.

154105134205345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201733.

The product of its (nonzero) digits is 720000, while the sum is 43.

Adding to 154105134205345 its reverse (543502431501451), we get a palindrome (697607565706796).

The spelling of 154105134205345 in words is "one hundred fifty-four trillion, one hundred five billion, one hundred thirty-four million, two hundred five thousand, three hundred forty-five".