1394531 has 4 divisors (see below), whose sum is σ = 1407672. Its totient is φ = 1381392.

The previous prime is 1394509. The next prime is 1394539. The reversal of 1394531 is 1354931.

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

It is a cyclic number.

It is not a de Polignac number, because 1394531 - 2¹⁴ = 1378147 is a prime.

It is a super-2 number, since 2×1394531² = 3889433419922, which contains 22 as substring.

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 1394531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1394539) 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 3 ways as a sum of consecutive naturals, for example, 6410 + ... + 6623.

It is an arithmetic number, because the mean of its divisors is an integer number (351918).

2^1394531 is an apocalyptic number.

1394531 is a deficient number, since it is larger than the sum of its proper divisors (13141).

1394531 is a wasteful number, since it uses less digits than its factorization.

1394531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13140.

The product of its digits is 1620, while the sum is 26.

The square root of 1394531 is about 1180.9026208795. The cubic root of 1394531 is about 111.7230348317.

The spelling of 1394531 in words is "one million, three hundred ninety-four thousand, five hundred thirty-one".