2015143223 has 2 divisors, whose sum is σ = 2015143224. Its totient is φ = 2015143222.

The previous prime is 2015143219. The next prime is 2015143243. The reversal of 2015143223 is 3223415102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2015143223 - 2² = 2015143219 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2015143243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007571611 + 1007571612.

It is an arithmetic number, because the mean of its divisors is an integer number (1007571612).

Almost surely, 2^2015143223 is an apocalyptic number.

2015143223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015143223 is an equidigital number, since it uses as much as digits as its factorization.

2015143223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2015143223 is about 44890.3466571600. The cubic root of 2015143223 is about 1263.0929354557.

Adding to 2015143223 its reverse (3223415102), we get a palindrome (5238558325).

The spelling of 2015143223 in words is "two billion, fifteen million, one hundred forty-three thousand, two hundred twenty-three".