1150231091 has 2 divisors, whose sum is σ = 1150231092. Its totient is φ = 1150231090.

The previous prime is 1150231079. The next prime is 1150231133. The reversal of 1150231091 is 1901320511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1150231091 - 2¹⁴ = 1150214707 is a prime.

It is not a weakly prime, because it can be changed into another prime (1150231001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575115545 + 575115546.

It is an arithmetic number, because the mean of its divisors is an integer number (575115546).

Almost surely, 2^1150231091 is an apocalyptic number.

1150231091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1150231091 is an equidigital number, since it uses as much as digits as its factorization.

1150231091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 23.

The square root of 1150231091 is about 33915.0569953819. The cubic root of 1150231091 is about 1047.7597257545.

The spelling of 1150231091 in words is "one billion, one hundred fifty million, two hundred thirty-one thousand, ninety-one".