1345630653 has 12 divisors (see below), whose sum is σ = 2010712860. Its totient is φ = 866152896.

The previous prime is 1345630639. The next prime is 1345630661. The reversal of 1345630653 is 3560365431.

1345630653 is a `hidden beast` number, since 1 + 34 + 563 + 0 + 65 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1104698169 + 240932484 = 33237^2 + 15522^2 .

It is not a de Polignac number, because 1345630653 - 2¹⁴ = 1345614269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345630753) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2577576 + ... + 2578097.

It is an arithmetic number, because the mean of its divisors is an integer number (167559405).

Almost surely, 2^1345630653 is an apocalyptic number.

It is an amenable number.

1345630653 is a deficient number, since it is larger than the sum of its proper divisors (665082207).

1345630653 is a wasteful number, since it uses less digits than its factorization.

1345630653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5155708 (or 5155705 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The square root of 1345630653 is about 36682.8386715096. The cubic root of 1345630653 is about 1104.0158044563.

The spelling of 1345630653 in words is "one billion, three hundred forty-five million, six hundred thirty thousand, six hundred fifty-three".