154105134140213 has 4 divisors (see below), whose sum is σ = 154105283977548. Its totient is φ = 154104984302880.

The previous prime is 154105134140173. The next prime is 154105134140257. The reversal of 154105134140213 is 312041431501451.

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

It can be written as a sum of positive squares in 2 ways, for example, as 71590856255044 + 82514277885169 = 8461138^2 + 9083737^2 .

It is a cyclic number.

It is not a de Polignac number, because 154105134140213 - 2³⁴ = 154087954271029 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 (154105134142213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73365206 + ... + 75436487.

It is an arithmetic number, because the mean of its divisors is an integer number (38526320994387).

Almost surely, 2^{154105134140213} is an apocalyptic number.

It is an amenable number.

154105134140213 is a deficient number, since it is larger than the sum of its proper divisors (149837335).

154105134140213 is a wasteful number, since it uses less digits than its factorization.

154105134140213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149837334.

The product of its (nonzero) digits is 28800, while the sum is 35.

Adding to 154105134140213 its reverse (312041431501451), we get a palindrome (466146565641664).

The spelling of 154105134140213 in words is "one hundred fifty-four trillion, one hundred five billion, one hundred thirty-four million, one hundred forty thousand, two hundred thirteen".