1369945 has 16 divisors (see below), whose sum is σ = 1772928. Its totient is φ = 1012480.

The previous prime is 1369943. The next prime is 1369961. The reversal of 1369945 is 5499631.

It is not a de Polignac number, because 1369945 - 2¹ = 1369943 is a prime.

It is a Duffinian number.

1369945 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1369943) 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, 5922 + ... + 6148.

It is an arithmetic number, because the mean of its divisors is an integer number (110808).

2^1369945 is an apocalyptic number.

It is an amenable number.

1369945 is a deficient number, since it is larger than the sum of its proper divisors (402983).

1369945 is a wasteful number, since it uses less digits than its factorization.

1369945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320.

The product of its digits is 29160, while the sum is 37.

The square root of 1369945 is about 1170.4464960006. The cubic root of 1369945 is about 111.0625678691.

The spelling of 1369945 in words is "one million, three hundred sixty-nine thousand, nine hundred forty-five".