1085501 has 4 divisors (see below), whose sum is σ = 1149372. Its totient is φ = 1021632.

The previous prime is 1085473. The next prime is 1085509. The reversal of 1085501 is 1055801.

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

It can be written as a sum of positive squares in 2 ways, for example, as 403225 + 682276 = 635^2 + 826^2 .

It is not a de Polignac number, because 1085501 - 2¹⁰ = 1084477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085509) 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, 31910 + ... + 31943.

It is an arithmetic number, because the mean of its divisors is an integer number (287343).

2^1085501 is an apocalyptic number.

It is an amenable number.

1085501 is a deficient number, since it is larger than the sum of its proper divisors (63871).

1085501 is an equidigital number, since it uses as much as digits as its factorization.

1085501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63870.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 1085501 is about 1041.8737927408. The cubic root of 1085501 is about 102.7724577610.

The spelling of 1085501 in words is "one million, eighty-five thousand, five hundred one".