231514555145541 has 4 divisors (see below), whose sum is σ = 308686073527392. Its totient is φ = 154343036763692.

The previous prime is 231514555145513. The next prime is 231514555145543. The reversal of 231514555145541 is 145541555415132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231514555145541 - 2¹¹ = 231514555143493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231514555145543) 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, 38585759190921 + ... + 38585759190926.

It is an arithmetic number, because the mean of its divisors is an integer number (77171518381848).

Almost surely, 2^{231514555145541} is an apocalyptic number.

It is an amenable number.

231514555145541 is a deficient number, since it is larger than the sum of its proper divisors (77171518381851).

231514555145541 is an equidigital number, since it uses as much as digits as its factorization.

231514555145541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77171518381850.

The product of its digits is 6000000, while the sum is 51.

The spelling of 231514555145541 in words is "two hundred thirty-one trillion, five hundred fourteen billion, five hundred fifty-five million, one hundred forty-five thousand, five hundred forty-one".