1071523 has 4 divisors (see below), whose sum is σ = 1074240. Its totient is φ = 1068808.

The previous prime is 1071487. The next prime is 1071529. The reversal of 1071523 is 3251701.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1071523 is a prime.

It is a super-2 number, since 2×1071523² = 2296323079058, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1071523.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071529) 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, 640 + ... + 1597.

It is an arithmetic number, because the mean of its divisors is an integer number (268560).

2^1071523 is an apocalyptic number.

1071523 is a deficient number, since it is larger than the sum of its proper divisors (2717).

1071523 is an equidigital number, since it uses as much as digits as its factorization.

1071523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2716.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 1071523 is about 1035.1439513420. The cubic root of 1071523 is about 102.3294168436.

The spelling of 1071523 in words is "one million, seventy-one thousand, five hundred twenty-three".