1345206653 has 24 divisors (see below), whose sum is σ = 1624965120. Its totient is φ = 1109172960.

The previous prime is 1345206613. The next prime is 1345206671. The reversal of 1345206653 is 3566025431.

It is not a de Polignac number, because 1345206653 - 2⁸ = 1345206397 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 (1345206613) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 260228 + ... + 265346.

It is an arithmetic number, because the mean of its divisors is an integer number (67706880).

Almost surely, 2^1345206653 is an apocalyptic number.

It is an amenable number.

1345206653 is a deficient number, since it is larger than the sum of its proper divisors (279758467).

1345206653 is a wasteful number, since it uses less digits than its factorization.

1345206653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5337 (or 5330 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 1345206653 is about 36677.0589469767. The cubic root of 1345206653 is about 1103.8998360628.

The spelling of 1345206653 in words is "one billion, three hundred forty-five million, two hundred six thousand, six hundred fifty-three".