154523341121 has 4 divisors (see below), whose sum is σ = 154675882452. Its totient is φ = 154370799792.

The previous prime is 154523341087. The next prime is 154523341157. The reversal of 154523341121 is 121143325451.

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 62155974721 + 92367366400 = 249311^2 + 303920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154523341121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154523340121) 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, 76269146 + ... + 76271171.

It is an arithmetic number, because the mean of its divisors is an integer number (38668970613).

Almost surely, 2^154523341121 is an apocalyptic number.

It is an amenable number.

154523341121 is a deficient number, since it is larger than the sum of its proper divisors (152541331).

154523341121 is a wasteful number, since it uses less digits than its factorization.

154523341121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152541330.

The product of its digits is 14400, while the sum is 32.

Adding to 154523341121 its reverse (121143325451), we get a palindrome (275666666572).

The spelling of 154523341121 in words is "one hundred fifty-four billion, five hundred twenty-three million, three hundred forty-one thousand, one hundred twenty-one".