2015412491 has 2 divisors, whose sum is σ = 2015412492. Its totient is φ = 2015412490.

The previous prime is 2015412481. The next prime is 2015412493. The reversal of 2015412491 is 1942145102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2015412491 - 2¹⁴ = 2015396107 is a prime.

It is a Sophie Germain prime.

Together with 2015412493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2015412493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007706245 + 1007706246.

It is an arithmetic number, because the mean of its divisors is an integer number (1007706246).

Almost surely, 2^2015412491 is an apocalyptic number.

2015412491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015412491 is an equidigital number, since it uses as much as digits as its factorization.

2015412491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 2015412491 is about 44893.3457318565. The cubic root of 2015412491 is about 1263.1491920626.

Adding to 2015412491 its reverse (1942145102), we get a palindrome (3957557593).

The spelling of 2015412491 in words is "two billion, fifteen million, four hundred twelve thousand, four hundred ninety-one".