1493665 has 4 divisors (see below), whose sum is σ = 1792404. Its totient is φ = 1194928.

The previous prime is 1493663. The next prime is 1493677. The reversal of 1493665 is 5663941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 219024 + 1274641 = 468^2 + 1129^2 .

It is a cyclic number.

It is not a de Polignac number, because 1493665 - 2¹ = 1493663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1493665.

It is not an unprimeable number, because it can be changed into a prime (1493663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149362 + ... + 149371.

It is an arithmetic number, because the mean of its divisors is an integer number (448101).

2^1493665 is an apocalyptic number.

It is an amenable number.

1493665 is a deficient number, since it is larger than the sum of its proper divisors (298739).

1493665 is an equidigital number, since it uses as much as digits as its factorization.

1493665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298738.

The product of its digits is 19440, while the sum is 34.

The square root of 1493665 is about 1222.1558820380. The cubic root of 1493665 is about 114.3100465304.

The spelling of 1493665 in words is "one million, four hundred ninety-three thousand, six hundred sixty-five".