891411139 has 2 divisors, whose sum is σ = 891411140. Its totient is φ = 891411138.

The previous prime is 891411109. The next prime is 891411149. The reversal of 891411139 is 931114198.

891411139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 891411139 - 2⁹ = 891410627 is a prime.

It is a super-2 number, since 2×891411139² = 1589227637466554642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 891411098 and 891411107.

It is not a weakly prime, because it can be changed into another prime (891411109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445705569 + 445705570.

It is an arithmetic number, because the mean of its divisors is an integer number (445705570).

Almost surely, 2^891411139 is an apocalyptic number.

891411139 is a deficient number, since it is larger than the sum of its proper divisors (1).

891411139 is an equidigital number, since it uses as much as digits as its factorization.

891411139 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 891411139 is about 29856.5091562962. The cubic root of 891411139 is about 962.4082832491.

The spelling of 891411139 in words is "eight hundred ninety-one million, four hundred eleven thousand, one hundred thirty-nine".