2030162581 has 2 divisors, whose sum is σ = 2030162582. Its totient is φ = 2030162580.

The previous prime is 2030162579. The next prime is 2030162611. The reversal of 2030162581 is 1852610302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1269781956 + 760380625 = 35634^2 + 27575^2 .

It is a cyclic number.

It is not a de Polignac number, because 2030162581 - 2¹ = 2030162579 is a prime.

It is a super-2 number, since 2×2030162581² = 8243120210585163122, which contains 22 as substring.

Together with 2030162579, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2030163581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015081290 + 1015081291.

It is an arithmetic number, because the mean of its divisors is an integer number (1015081291).

Almost surely, 2^2030162581 is an apocalyptic number.

It is an amenable number.

2030162581 is a deficient number, since it is larger than the sum of its proper divisors (1).

2030162581 is an equidigital number, since it uses as much as digits as its factorization.

2030162581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2030162581 is about 45057.3254976369. The cubic root of 2030162581 is about 1266.2232187863.

Adding to 2030162581 its reverse (1852610302), we get a palindrome (3882772883).

The spelling of 2030162581 in words is "two billion, thirty million, one hundred sixty-two thousand, five hundred eighty-one".