1915011013 has 2 divisors, whose sum is σ = 1915011014. Its totient is φ = 1915011012.

The previous prime is 1915010989. The next prime is 1915011079. The reversal of 1915011013 is 3101105191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1473254689 + 441756324 = 38383^2 + 21018^2 .

It is a cyclic number.

It is not a de Polignac number, because 1915011013 - 2²¹ = 1912913861 is a prime.

It is a super-2 number, since 2×1915011013² = 7334534359822572338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1915011913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 957505506 + 957505507.

It is an arithmetic number, because the mean of its divisors is an integer number (957505507).

Almost surely, 2^1915011013 is an apocalyptic number.

It is an amenable number.

1915011013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1915011013 is an equidigital number, since it uses as much as digits as its factorization.

1915011013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135, while the sum is 22.

The square root of 1915011013 is about 43760.8388059461. The cubic root of 1915011013 is about 1241.8155448189.

The spelling of 1915011013 in words is "one billion, nine hundred fifteen million, eleven thousand, thirteen".