1081523 has 8 divisors (see below), whose sum is σ = 1157328. Its totient is φ = 1007104.

The previous prime is 1081513. The next prime is 1081541. The reversal of 1081523 is 3251801.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1081523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1081495 and 1081504.

It is not an unprimeable number, because it can be changed into a prime (1081513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1640 + ... + 2202.

It is an arithmetic number, because the mean of its divisors is an integer number (144666).

2^1081523 is an apocalyptic number.

1081523 is a deficient number, since it is larger than the sum of its proper divisors (75805).

1081523 is a wasteful number, since it uses less digits than its factorization.

1081523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1081523 is about 1039.9629801103. The cubic root of 1081523 is about 102.6467618033.

The spelling of 1081523 in words is "one million, eighty-one thousand, five hundred twenty-three".