2158284061 has 4 divisors (see below), whose sum is σ = 2164165312. Its totient is φ = 2152402812.

The previous prime is 2158284019. The next prime is 2158284071. The reversal of 2158284061 is 1604828512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2158284061 - 2¹¹ = 2158282013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2158284061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2158284071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2940075 + ... + 2940808.

It is an arithmetic number, because the mean of its divisors is an integer number (541041328).

Almost surely, 2^2158284061 is an apocalyptic number.

It is an amenable number.

2158284061 is a deficient number, since it is larger than the sum of its proper divisors (5881251).

2158284061 is an equidigital number, since it uses as much as digits as its factorization.

2158284061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5881250.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 2158284061 is about 46457.3359223277. The cubic root of 2158284061 is about 1292.3184197698.

The spelling of 2158284061 in words is "two billion, one hundred fifty-eight million, two hundred eighty-four thousand, sixty-one".