154341131531 has 4 divisors (see below), whose sum is σ = 162464349000. Its totient is φ = 146217914064.

The previous prime is 154341131491. The next prime is 154341131551. The reversal of 154341131531 is 135131143451.

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 154341131531 - 2¹⁰ = 154341130507 is a prime.

It is a super-2 number, since 2×154341131531² (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 (154341131551) 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, 4061608706 + ... + 4061608743.

It is an arithmetic number, because the mean of its divisors is an integer number (40616087250).

Almost surely, 2^154341131531 is an apocalyptic number.

154341131531 is a deficient number, since it is larger than the sum of its proper divisors (8123217469).

154341131531 is an equidigital number, since it uses as much as digits as its factorization.

154341131531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8123217468.

The product of its digits is 10800, while the sum is 32.

Adding to 154341131531 its reverse (135131143451), we get a palindrome (289472274982).

The spelling of 154341131531 in words is "one hundred fifty-four billion, three hundred forty-one million, one hundred thirty-one thousand, five hundred thirty-one".