1493645 has 8 divisors (see below), whose sum is σ = 1854360. Its totient is φ = 1153600.

The previous prime is 1493641. The next prime is 1493651. The reversal of 1493645 is 5463941.

It can be written as a sum of positive squares in 4 ways, for example, as 515524 + 978121 = 718^2 + 989^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1493645 - 2² = 1493641 is a prime.

It is a super-3 number, since 3×1493645³ = 9996855691377933375, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5006 + ... + 5295.

It is an arithmetic number, because the mean of its divisors is an integer number (231795).

2^1493645 is an apocalyptic number.

It is an amenable number.

1493645 is a deficient number, since it is larger than the sum of its proper divisors (360715).

1493645 is a wasteful number, since it uses less digits than its factorization.

1493645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10335.

The product of its digits is 12960, while the sum is 32.

The square root of 1493645 is about 1222.1476997483. The cubic root of 1493645 is about 114.3095363288.

The spelling of 1493645 in words is "one million, four hundred ninety-three thousand, six hundred forty-five".