345184258181 has 4 divisors (see below), whose sum is σ = 394496295072. Its totient is φ = 295872221292.

The previous prime is 345184258123. The next prime is 345184258187. The reversal of 345184258181 is 181852481543.

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, and also an emirpimes, since its reverse is a distinct semiprime: 181852481543 = 54091 ⋅3361973.

It is a cyclic number.

It is not a de Polignac number, because 345184258181 - 2²⁶ = 345117149317 is a prime.

It is a super-2 number, since 2×345184258181² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345184258187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24656018435 + ... + 24656018448.

It is an arithmetic number, because the mean of its divisors is an integer number (98624073768).

Almost surely, 2^345184258181 is an apocalyptic number.

It is an amenable number.

345184258181 is a deficient number, since it is larger than the sum of its proper divisors (49312036891).

345184258181 is an equidigital number, since it uses as much as digits as its factorization.

345184258181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49312036890.

The product of its digits is 1228800, while the sum is 50.

The spelling of 345184258181 in words is "three hundred forty-five billion, one hundred eighty-four million, two hundred fifty-eight thousand, one hundred eighty-one".