1369145 has 12 divisors (see below), whose sum is σ = 1695204. Its totient is φ = 1061280.

The previous prime is 1369139. The next prime is 1369153. The reversal of 1369145 is 5419631.

It can be written as a sum of positive squares in 2 ways, for example, as 219961 + 1149184 = 469^2 + 1072^2 .

It is not a de Polignac number, because 1369145 - 2¹⁰ = 1368121 is a prime.

It is a Duffinian number.

It is a Curzon 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, 20402 + ... + 20468.

It is an arithmetic number, because the mean of its divisors is an integer number (141267).

2^1369145 is an apocalyptic number.

It is an amenable number.

1369145 is a deficient number, since it is larger than the sum of its proper divisors (326059).

1369145 is an frugal number, since it uses more digits than its factorization.

1369145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 133 counting only the distinct ones).

The product of its digits is 3240, while the sum is 29.

The square root of 1369145 is about 1170.1046961704. The cubic root of 1369145 is about 111.0409447736.

The spelling of 1369145 in words is "one million, three hundred sixty-nine thousand, one hundred forty-five".