1345005555 has 8 divisors (see below), whose sum is σ = 2152008912. Its totient is φ = 717336288.

The previous prime is 1345005553. The next prime is 1345005559. The reversal of 1345005555 is 5555005431.

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

It is not a de Polignac number, because 1345005555 - 2¹ = 1345005553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1345005553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44833504 + ... + 44833533.

It is an arithmetic number, because the mean of its divisors is an integer number (269001114).

Almost surely, 2^1345005555 is an apocalyptic number.

1345005555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1345005555 is a deficient number, since it is larger than the sum of its proper divisors (807003357).

1345005555 is an equidigital number, since it uses as much as digits as its factorization.

1345005555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89667045.

The product of its (nonzero) digits is 37500, while the sum is 33.

The square root of 1345005555 is about 36674.3173760603. The cubic root of 1345005555 is about 1103.8448251564.

The spelling of 1345005555 in words is "one billion, three hundred forty-five million, five thousand, five hundred fifty-five".