1020164450 has 18 divisors (see below), whose sum is σ = 1897926051. Its totient is φ = 407975440.

The previous prime is 1020164447. The next prime is 1020164479. The reversal of 1020164450 is 544610201.

It can be written as a sum of positive squares in 5 ways, for example, as 6315169 + 1013849281 = 2513^2 + 31841^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=22585.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 223592 + ... + 228108.

Almost surely, 2^1020164450 is an apocalyptic number.

1020164450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020164450 is a deficient number, since it is larger than the sum of its proper divisors (877761601).

1020164450 is an frugal number, since it uses more digits than its factorization.

1020164450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9046 (or 4524 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1020164450 is about 31940.0133061964. The cubic root of 1020164450 is about 1006.6768043997.

Adding to 1020164450 its reverse (544610201), we get a palindrome (1564774651).

The spelling of 1020164450 in words is "one billion, twenty million, one hundred sixty-four thousand, four hundred fifty".