1080531 has 12 divisors (see below), whose sum is σ = 1570920. Its totient is φ = 715680.

The previous prime is 1080523. The next prime is 1080539. The reversal of 1080531 is 1350801.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1080523) and next prime (1080539).

It is not a de Polignac number, because 1080531 - 2³ = 1080523 is a prime.

It is a super-2 number, since 2×1080531² = 2335094483922, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1080539) 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 11 ways as a sum of consecutive naturals, for example, 1615 + ... + 2183.

It is an arithmetic number, because the mean of its divisors is an integer number (130910).

2^1080531 is an apocalyptic number.

1080531 is a deficient number, since it is larger than the sum of its proper divisors (490389).

1080531 is a wasteful number, since it uses less digits than its factorization.

1080531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1080531 is about 1039.4859306407. The cubic root of 1080531 is about 102.6153688091.

The spelling of 1080531 in words is "one million, eighty thousand, five hundred thirty-one".