1383531 has 8 divisors (see below), whose sum is σ = 1854864. Its totient is φ = 917280.

The previous prime is 1383521. The next prime is 1383553. The reversal of 1383531 is 1353831.

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

It is not a de Polignac number, because 1383531 - 2¹¹ = 1381483 is a prime.

It is a super-2 number, since 2×1383531² = 3828316055922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383521) 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, 580 + ... + 1761.

It is an arithmetic number, because the mean of its divisors is an integer number (231858).

2^1383531 is an apocalyptic number.

1383531 is a deficient number, since it is larger than the sum of its proper divisors (471333).

1383531 is a wasteful number, since it uses less digits than its factorization.

1383531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541.

The product of its digits is 1080, while the sum is 24.

The square root of 1383531 is about 1176.2359457184. The cubic root of 1383531 is about 111.4285035690.

The spelling of 1383531 in words is "one million, three hundred eighty-three thousand, five hundred thirty-one".