1090517 has 4 divisors (see below), whose sum is σ = 1102860. Its totient is φ = 1078176.

The previous prime is 1090493. The next prime is 1090519. The reversal of 1090517 is 7150901.

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 361201 + 729316 = 601^2 + 854^2 .

It is a cyclic number.

It is not a de Polignac number, because 1090517 - 2¹⁴ = 1074133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1090492 and 1090501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090519) 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, 6038 + ... + 6215.

It is an arithmetic number, because the mean of its divisors is an integer number (275715).

2^1090517 is an apocalyptic number.

It is an amenable number.

1090517 is a deficient number, since it is larger than the sum of its proper divisors (12343).

1090517 is an equidigital number, since it uses as much as digits as its factorization.

1090517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12342.

The product of its (nonzero) digits is 315, while the sum is 23.

The square root of 1090517 is about 1044.2782196331. The cubic root of 1090517 is about 102.9305152368.

The spelling of 1090517 in words is "one million, ninety thousand, five hundred seventeen".