2015213089 has 2 divisors, whose sum is σ = 2015213090. Its totient is φ = 2015213088.

The previous prime is 2015213071. The next prime is 2015213119. The reversal of 2015213089 is 9803125102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1473254689 + 541958400 = 38383^2 + 23280^2 .

It is a cyclic number.

It is not a de Polignac number, because 2015213089 - 2¹³ = 2015204897 is a prime.

It is a super-2 number, since 2×2015213089² = 8122167588153843842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2015213089.

It is not a weakly prime, because it can be changed into another prime (2015213009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007606544 + 1007606545.

It is an arithmetic number, because the mean of its divisors is an integer number (1007606545).

Almost surely, 2^2015213089 is an apocalyptic number.

It is an amenable number.

2015213089 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015213089 is an equidigital number, since it uses as much as digits as its factorization.

2015213089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 2015213089 is about 44891.1248355396. The cubic root of 2015213089 is about 1263.1075326367.

The spelling of 2015213089 in words is "two billion, fifteen million, two hundred thirteen thousand, eighty-nine".