154145405131 has 4 divisors (see below), whose sum is σ = 154602810232. Its totient is φ = 153688000032.

The previous prime is 154145405129. The next prime is 154145405149. The reversal of 154145405131 is 131504541451.

154145405131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 154145405131 - 2¹ = 154145405129 is a prime.

It is a super-2 number, since 2×154145405131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154145435131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228702045 + ... + 228702718.

It is an arithmetic number, because the mean of its divisors is an integer number (38650702558).

Almost surely, 2^154145405131 is an apocalyptic number.

154145405131 is a deficient number, since it is larger than the sum of its proper divisors (457405101).

154145405131 is an equidigital number, since it uses as much as digits as its factorization.

154145405131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457405100.

The product of its (nonzero) digits is 24000, while the sum is 34.

Adding to 154145405131 its reverse (131504541451), we get a palindrome (285649946582).

The spelling of 154145405131 in words is "one hundred fifty-four billion, one hundred forty-five million, four hundred five thousand, one hundred thirty-one".