1020162553 has 2 divisors, whose sum is σ = 1020162554. Its totient is φ = 1020162552.

The previous prime is 1020162547. The next prime is 1020162599. The reversal of 1020162553 is 3552610201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 713317264 + 306845289 = 26708^2 + 17517^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020162553 - 2²⁵ = 986608121 is a prime.

It is a super-3 number, since 3×1020162553³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1020142553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510081276 + 510081277.

It is an arithmetic number, because the mean of its divisors is an integer number (510081277).

Almost surely, 2^1020162553 is an apocalyptic number.

It is an amenable number.

1020162553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020162553 is an equidigital number, since it uses as much as digits as its factorization.

1020162553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1020162553 is about 31939.9836098893. The cubic root of 1020162553 is about 1006.6761804260.

Adding to 1020162553 its reverse (3552610201), we get a palindrome (4572772754).

The spelling of 1020162553 in words is "one billion, twenty million, one hundred sixty-two thousand, five hundred fifty-three".