154340431131 has 16 divisors (see below), whose sum is σ = 206367676160. Its totient is φ = 102603503520.

The previous prime is 154340431117. The next prime is 154340431151. The reversal of 154340431131 is 131134043451.

It is not a de Polignac number, because 154340431131 - 2⁶ = 154340431067 is a prime.

It is a super-2 number, since 2×154340431131² (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 (154340431151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9441441 + ... + 9457773.

It is an arithmetic number, because the mean of its divisors is an integer number (12897979760).

Almost surely, 2^154340431131 is an apocalyptic number.

154340431131 is a deficient number, since it is larger than the sum of its proper divisors (52027245029).

154340431131 is a wasteful number, since it uses less digits than its factorization.

154340431131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25026.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 154340431131 its reverse (131134043451), we get a palindrome (285474474582).

The spelling of 154340431131 in words is "one hundred fifty-four billion, three hundred forty million, four hundred thirty-one thousand, one hundred thirty-one".