1085726413 has 4 divisors (see below), whose sum is σ = 1085905660. Its totient is φ = 1085547168.

The previous prime is 1085726377. The next prime is 1085726417. The reversal of 1085726413 is 3146275801.

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 528908004 + 556818409 = 22998^2 + 23597^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1085726413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085726417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80208 + ... + 92761.

It is an arithmetic number, because the mean of its divisors is an integer number (271476415).

Almost surely, 2^1085726413 is an apocalyptic number.

It is an amenable number.

1085726413 is a deficient number, since it is larger than the sum of its proper divisors (179247).

1085726413 is an equidigital number, since it uses as much as digits as its factorization.

1085726413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179246.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 1085726413 is about 32950.3628659837. The cubic root of 1085726413 is about 1027.7957111075.

The spelling of 1085726413 in words is "one billion, eighty-five million, seven hundred twenty-six thousand, four hundred thirteen".