345145140455 has 4 divisors (see below), whose sum is σ = 414174168552. Its totient is φ = 276116112360.

The previous prime is 345145140451. The next prime is 345145140463. The reversal of 345145140455 is 554041541543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 554041541543 = 7 ⋅79148791649.

It is not a de Polignac number, because 345145140455 - 2² = 345145140451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345145140451) 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, 34514514041 + ... + 34514514050.

It is an arithmetic number, because the mean of its divisors is an integer number (103543542138).

Almost surely, 2^345145140455 is an apocalyptic number.

345145140455 is a deficient number, since it is larger than the sum of its proper divisors (69029028097).

345145140455 is an equidigital number, since it uses as much as digits as its factorization.

345145140455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69029028096.

The product of its (nonzero) digits is 480000, while the sum is 41.

Adding to 345145140455 its reverse (554041541543), we get a palindrome (899186681998).

The spelling of 345145140455 in words is "three hundred forty-five billion, one hundred forty-five million, one hundred forty thousand, four hundred fifty-five".