1308493 has 4 divisors (see below), whose sum is σ = 1365408. Its totient is φ = 1251580.

The previous prime is 1308491. The next prime is 1308497. The reversal of 1308493 is 3948031.

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: 3948031 = 29 ⋅136139.

It is a cyclic number.

It is not a de Polignac number, because 1308493 - 2¹ = 1308491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1308491) 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, 28423 + ... + 28468.

It is an arithmetic number, because the mean of its divisors is an integer number (341352).

2^1308493 is an apocalyptic number.

It is an amenable number.

1308493 is a deficient number, since it is larger than the sum of its proper divisors (56915).

1308493 is an equidigital number, since it uses as much as digits as its factorization.

1308493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56914.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1308493 is about 1143.8937887759. The cubic root of 1308493 is about 109.3764443891.

The spelling of 1308493 in words is "one million, three hundred eight thousand, four hundred ninety-three".