1020193 has 4 divisors (see below), whose sum is σ = 1022868. Its totient is φ = 1017520.

The previous prime is 1020163. The next prime is 1020223. The reversal of 1020193 is 3910201.

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

It is an interprime number because it is at equal distance from previous prime (1020163) and next prime (1020223).

It can be written as a sum of positive squares in 2 ways, for example, as 762129 + 258064 = 873^2 + 508^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020113) 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, 646 + ... + 1567.

It is an arithmetic number, because the mean of its divisors is an integer number (255717).

2^1020193 is an apocalyptic number.

It is an amenable number.

1020193 is a deficient number, since it is larger than the sum of its proper divisors (2675).

1020193 is an equidigital number, since it uses as much as digits as its factorization.

1020193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1020193 is about 1010.0460385547. The cubic root of 1020193 is about 100.6686195158.

Adding to 1020193 its reverse (3910201), we get a palindrome (4930394).

It can be divided in two parts, 10 and 20193, that multiplied together give a triangular number (201930 = T₆₃₅).

The spelling of 1020193 in words is "one million, twenty thousand, one hundred ninety-three".