1359531 has 16 divisors (see below), whose sum is σ = 2062720. Its totient is φ = 884520.

The previous prime is 1359529. The next prime is 1359563.

1359531 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1359531 - 2¹ = 1359529 is a prime.

It is a super-2 number, since 2×1359531² = 3696649079922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1359495 and 1359504.

It is not an unprimeable number, because it can be changed into a prime (1359521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 576 + ... + 1746.

It is an arithmetic number, because the mean of its divisors is an integer number (128920).

2^1359531 is an apocalyptic number.

1359531 is a deficient number, since it is larger than the sum of its proper divisors (703189).

1359531 is a wasteful number, since it uses less digits than its factorization.

1359531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223 (or 1217 counting only the distinct ones).

The product of its digits is 2025, while the sum is 27.

The square root of 1359531 is about 1165.9892795391. The cubic root of 1359531 is about 110.7804278879.

The spelling of 1359531 in words is "one million, three hundred fifty-nine thousand, five hundred thirty-one".