1078531 has 4 divisors (see below), whose sum is σ = 1141992. Its totient is φ = 1015072.

The previous prime is 1078507. The next prime is 1078537. The reversal of 1078531 is 1358701.

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 1078531 - 2⁷ = 1078403 is a prime.

It is a super-2 number, since 2×1078531² = 2326458235922, which contains 22 as substring.

1078531 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1078496 and 1078505.

It is not an unprimeable number, because it can be changed into a prime (1078537) 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, 31705 + ... + 31738.

It is an arithmetic number, because the mean of its divisors is an integer number (285498).

2^1078531 is an apocalyptic number.

1078531 is a deficient number, since it is larger than the sum of its proper divisors (63461).

1078531 is an equidigital number, since it uses as much as digits as its factorization.

1078531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63460.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 1078531 is about 1038.5234710877. The cubic root of 1078531 is about 102.5520180148.

It can be divided in two parts, 10785 and 31, that added together give a square (10816 = 104²).

The spelling of 1078531 in words is "one million, seventy-eight thousand, five hundred thirty-one".