1345603105 has 16 divisors (see below), whose sum is σ = 2013162624. Its totient is φ = 838817280.

The previous prime is 1345603099. The next prime is 1345603117. The reversal of 1345603105 is 5013065431.

It is not a de Polignac number, because 1345603105 - 2⁵ = 1345603073 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1747152 + ... + 1747921.

It is an arithmetic number, because the mean of its divisors is an integer number (125822664).

Almost surely, 2^1345603105 is an apocalyptic number.

It is an amenable number.

1345603105 is a deficient number, since it is larger than the sum of its proper divisors (667559519).

1345603105 is a wasteful number, since it uses less digits than its factorization.

1345603105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3495096.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 1345603105 is about 36682.4631806535. The cubic root of 1345603105 is about 1104.0082705329.

Adding to 1345603105 its reverse (5013065431), we get a palindrome (6358668536).

It can be divided in two parts, 1345 and 603105, that added together give a triangular number (604450 = T₁₀₉₉).

The spelling of 1345603105 in words is "one billion, three hundred forty-five million, six hundred three thousand, one hundred five".