1345105163525 has 12 divisors (see below), whose sum is σ = 1667976613572. Its totient is φ = 1076054317440.

The previous prime is 1345105163461. The next prime is 1345105163543. The reversal of 1345105163525 is 5253615015431.

It can be written as a sum of positive squares in 6 ways, for example, as 333393069604 + 1011712093921 = 577402^2 + 1005839^2 .

It is not a de Polignac number, because 1345105163525 - 2⁶ = 1345105163461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198497 + ... + 1652153.

It is an arithmetic number, because the mean of its divisors is an integer number (138998051131).

Almost surely, 2^{1345105163525} is an apocalyptic number.

It is an amenable number.

1345105163525 is a deficient number, since it is larger than the sum of its proper divisors (322871450047).

1345105163525 is a wasteful number, since it uses less digits than its factorization.

1345105163525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490680 (or 1490675 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 41.

The spelling of 1345105163525 in words is "one trillion, three hundred forty-five billion, one hundred five million, one hundred sixty-three thousand, five hundred twenty-five".