1381593 has 4 divisors (see below), whose sum is σ = 1842128. Its totient is φ = 921060.

The previous prime is 1381559. The next prime is 1381609. The reversal of 1381593 is 3951831.

It is a happy number.

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.

It is not a de Polignac number, because 1381593 - 2⁶ = 1381529 is a prime.

It is a D-number.

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 1381593.

It is not an unprimeable number, because it can be changed into a prime (1381553) 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, 230263 + ... + 230268.

It is an arithmetic number, because the mean of its divisors is an integer number (460532).

2^1381593 is an apocalyptic number.

It is an amenable number.

1381593 is a deficient number, since it is larger than the sum of its proper divisors (460535).

1381593 is an equidigital number, since it uses as much as digits as its factorization.

1381593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460534.

The product of its digits is 3240, while the sum is 30.

The square root of 1381593 is about 1175.4118427173. The cubic root of 1381593 is about 111.3764509227.

The spelling of 1381593 in words is "one million, three hundred eighty-one thousand, five hundred ninety-three".