154112340145 has 4 divisors (see below), whose sum is σ = 184934808180. Its totient is φ = 123289872112.

The previous prime is 154112340113. The next prime is 154112340149. The reversal of 154112340145 is 541043211451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541043211451 = 31 ⋅17453006821.

It can be written as a sum of positive squares in 2 ways, for example, as 78020221041 + 76092119104 = 279321^2 + 275848^2 .

It is a cyclic number.

It is not a de Polignac number, because 154112340145 - 2⁵ = 154112340113 is a prime.

It is a super-2 number, since 2×154112340145² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (154112340149) 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, 15411234010 + ... + 15411234019.

It is an arithmetic number, because the mean of its divisors is an integer number (46233702045).

Almost surely, 2^154112340145 is an apocalyptic number.

It is an amenable number.

154112340145 is a deficient number, since it is larger than the sum of its proper divisors (30822468035).

154112340145 is an equidigital number, since it uses as much as digits as its factorization.

154112340145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30822468034.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 154112340145 its reverse (541043211451), we get a palindrome (695155551596).

The spelling of 154112340145 in words is "one hundred fifty-four billion, one hundred twelve million, three hundred forty thousand, one hundred forty-five".