345305145523 has 8 divisors (see below), whose sum is σ = 375477441248. Its totient is φ = 315648615744.

The previous prime is 345305145509. The next prime is 345305145539. The reversal of 345305145523 is 325541503543.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345305145523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345305145583) 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 7 ways as a sum of consecutive naturals, for example, 128940090 + ... + 128942767.

It is an arithmetic number, because the mean of its divisors is an integer number (46934680156).

Almost surely, 2^345305145523 is an apocalyptic number.

345305145523 is a deficient number, since it is larger than the sum of its proper divisors (30172295725).

345305145523 is a wasteful number, since it uses less digits than its factorization.

345305145523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257882973.

The product of its (nonzero) digits is 540000, while the sum is 40.

The spelling of 345305145523 in words is "three hundred forty-five billion, three hundred five million, one hundred forty-five thousand, five hundred twenty-three".