1493081 has 4 divisors (see below), whose sum is σ = 1497600. Its totient is φ = 1488564.

The previous prime is 1493071. The next prime is 1493099. The reversal of 1493081 is 1803941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1803941 = 89 ⋅20269.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1493081 is a prime.

It is a super-2 number, since 2×1493081² = 4458581745122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1493081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493071) 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, 1721 + ... + 2438.

It is an arithmetic number, because the mean of its divisors is an integer number (374400).

2^1493081 is an apocalyptic number.

It is an amenable number.

1493081 is a deficient number, since it is larger than the sum of its proper divisors (4519).

1493081 is an equidigital number, since it uses as much as digits as its factorization.

1493081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4518.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1493081 is about 1221.9169366205. The cubic root of 1493081 is about 114.2951467661.

The spelling of 1493081 in words is "one million, four hundred ninety-three thousand, eighty-one".