1020453355 has 4 divisors (see below), whose sum is σ = 1224544032. Its totient is φ = 816362680.

The previous prime is 1020453341. The next prime is 1020453367. The reversal of 1020453355 is 5533540201.

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

It is not a de Polignac number, because 1020453355 - 2⁹ = 1020452843 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102045331 + ... + 102045340.

It is an arithmetic number, because the mean of its divisors is an integer number (306136008).

Almost surely, 2^1020453355 is an apocalyptic number.

1020453355 is a deficient number, since it is larger than the sum of its proper divisors (204090677).

1020453355 is an equidigital number, since it uses as much as digits as its factorization.

1020453355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204090676.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 1020453355 is about 31944.5356047008. The cubic root of 1020453355 is about 1006.7718238880.

Adding to 1020453355 its reverse (5533540201), we get a palindrome (6553993556).

The spelling of 1020453355 in words is "one billion, twenty million, four hundred fifty-three thousand, three hundred fifty-five".