913140913 has 2 divisors, whose sum is σ = 913140914. Its totient is φ = 913140912.

The previous prime is 913140881. The next prime is 913140919. The reversal of 913140913 is 319041319.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 496041984 + 417098929 = 22272^2 + 20423^2 .

It is an emirp because it is prime and its reverse (319041319) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 913140913 - 2⁵ = 913140881 is a prime.

It is not a weakly prime, because it can be changed into another prime (913140919) 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, 456570456 + 456570457.

It is an arithmetic number, because the mean of its divisors is an integer number (456570457).

Almost surely, 2^913140913 is an apocalyptic number.

It is an amenable number.

913140913 is a deficient number, since it is larger than the sum of its proper divisors (1).

913140913 is an equidigital number, since it uses as much as digits as its factorization.

913140913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 913140913 is about 30218.2215393295. The cubic root of 913140913 is about 970.1657395610.

The spelling of 913140913 in words is "nine hundred thirteen million, one hundred forty thousand, nine hundred thirteen".