145565541331 has 8 divisors (see below), whose sum is σ = 168466449920. Its totient is φ = 123191090568.

The previous prime is 145565541299. The next prime is 145565541367. The reversal of 145565541331 is 133145565541.

145565541331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145565541331 - 2⁵ = 145565541299 is a prime.

It is a super-2 number, since 2×145565541331² (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 (145565541371) 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 7 ways as a sum of consecutive naturals, for example, 131613861 + ... + 131614966.

It is an arithmetic number, because the mean of its divisors is an integer number (21058306240).

Almost surely, 2^145565541331 is an apocalyptic number.

145565541331 is a deficient number, since it is larger than the sum of its proper divisors (22900908589).

145565541331 is an equidigital number, since it uses as much as digits as its factorization.

145565541331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263228913.

The product of its digits is 540000, while the sum is 43.

The spelling of 145565541331 in words is "one hundred forty-five billion, five hundred sixty-five million, five hundred forty-one thousand, three hundred thirty-one".