914191381 has 2 divisors, whose sum is σ = 914191382. Its totient is φ = 914191380.

The previous prime is 914191363. The next prime is 914191417. The reversal of 914191381 is 183191419.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 875627281 + 38564100 = 29591^2 + 6210^2 .

It is a cyclic number.

It is not a de Polignac number, because 914191381 - 2¹⁵ = 914158613 is a prime.

It is a super-2 number, since 2×914191381² = 1671491762189374322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 914191381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (914191781) 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, 457095690 + 457095691.

It is an arithmetic number, because the mean of its divisors is an integer number (457095691).

Almost surely, 2^914191381 is an apocalyptic number.

It is an amenable number.

914191381 is a deficient number, since it is larger than the sum of its proper divisors (1).

914191381 is an equidigital number, since it uses as much as digits as its factorization.

914191381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 37.

The square root of 914191381 is about 30235.5979104102. The cubic root of 914191381 is about 970.5376199214.

The spelling of 914191381 in words is "nine hundred fourteen million, one hundred ninety-one thousand, three hundred eighty-one".