1349663653 has 16 divisors (see below), whose sum is σ = 1472929920. Its totient is φ = 1229270976.

The previous prime is 1349663641. The next prime is 1349663657. The reversal of 1349663653 is 3563669431.

It is a cyclic number.

It is not a de Polignac number, because 1349663653 - 2²⁹ = 812792741 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 (1349663657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372376 + ... + 375982.

It is an arithmetic number, because the mean of its divisors is an integer number (92058120).

Almost surely, 2^1349663653 is an apocalyptic number.

1349663653 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1349663653 is a deficient number, since it is larger than the sum of its proper divisors (123266267).

1349663653 is a wasteful number, since it uses less digits than its factorization.

1349663653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3996.

The product of its digits is 1049760, while the sum is 46.

The square root of 1349663653 is about 36737.7687536954. The cubic root of 1349663653 is about 1105.1176558245.

The spelling of 1349663653 in words is "one billion, three hundred forty-nine million, six hundred sixty-three thousand, six hundred fifty-three".