1086154891 has 2 divisors, whose sum is σ = 1086154892. Its totient is φ = 1086154890.

The previous prime is 1086154793. The next prime is 1086154933. The reversal of 1086154891 is 1984516801.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1086154891 is a prime.

It is not a weakly prime, because it can be changed into another prime (1086154291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543077445 + 543077446.

It is an arithmetic number, because the mean of its divisors is an integer number (543077446).

Almost surely, 2^1086154891 is an apocalyptic number.

1086154891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1086154891 is an equidigital number, since it uses as much as digits as its factorization.

1086154891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 43.

The square root of 1086154891 is about 32956.8640953596. The cubic root of 1086154891 is about 1027.9308986113.

The spelling of 1086154891 in words is "one billion, eighty-six million, one hundred fifty-four thousand, eight hundred ninety-one".