1020395743 has 8 divisors (see below), whose sum is σ = 1080698112. Its totient is φ = 960124416.

The previous prime is 1020395669. The next prime is 1020395771. The reversal of 1020395743 is 3475930201.

1020395743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020395743 - 2⁹ = 1020395231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020395699 and 1020395708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020393743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123271 + ... + 131287.

It is an arithmetic number, because the mean of its divisors is an integer number (135087264).

Almost surely, 2^1020395743 is an apocalyptic number.

1020395743 is a deficient number, since it is larger than the sum of its proper divisors (60302369).

1020395743 is an equidigital number, since it uses as much as digits as its factorization.

1020395743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15521.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 1020395743 is about 31943.6338415028. The cubic root of 1020395743 is about 1006.7528770054.

The spelling of 1020395743 in words is "one billion, twenty million, three hundred ninety-five thousand, seven hundred forty-three".