1349011565 has 16 divisors (see below), whose sum is σ = 1767782016. Its totient is φ = 980097600.

The previous prime is 1349011553. The next prime is 1349011607. The reversal of 1349011565 is 5651109431.

It is not a de Polignac number, because 1349011565 - 2¹⁴ = 1348995181 is a prime.

It is a congruent number.

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, 44144 + ... + 68166.

It is an arithmetic number, because the mean of its divisors is an integer number (110486376).

Almost surely, 2^1349011565 is an apocalyptic number.

It is an amenable number.

1349011565 is a deficient number, since it is larger than the sum of its proper divisors (418770451).

1349011565 is a wasteful number, since it uses less digits than its factorization.

1349011565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25060.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 1349011565 is about 36728.8927821136. The cubic root of 1349011565 is about 1104.9396484991.

The spelling of 1349011565 in words is "one billion, three hundred forty-nine million, eleven thousand, five hundred sixty-five".