2015042069 has 2 divisors, whose sum is σ = 2015042070. Its totient is φ = 2015042068.

The previous prime is 2015042063. The next prime is 2015042077. The reversal of 2015042069 is 9602405102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1893381169 + 121660900 = 43513^2 + 11030^2 .

It is a cyclic number.

It is not a de Polignac number, because 2015042069 - 2⁴ = 2015042053 is a prime.

It is a super-2 number, since 2×2015042069² = 8120789079679601522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2015042063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007521034 + 1007521035.

It is an arithmetic number, because the mean of its divisors is an integer number (1007521035).

Almost surely, 2^2015042069 is an apocalyptic number.

It is an amenable number.

2015042069 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015042069 is an equidigital number, since it uses as much as digits as its factorization.

2015042069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2015042069 is about 44889.2199642631. The cubic root of 2015042069 is about 1263.0718006402.

The spelling of 2015042069 in words is "two billion, fifteen million, forty-two thousand, sixty-nine".