1149201191 has 2 divisors, whose sum is σ = 1149201192. Its totient is φ = 1149201190.

The previous prime is 1149201169. The next prime is 1149201199. The reversal of 1149201191 is 1911029411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1149201191 - 2⁶ = 1149201127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1149201199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574600595 + 574600596.

It is an arithmetic number, because the mean of its divisors is an integer number (574600596).

Almost surely, 2^1149201191 is an apocalyptic number.

1149201191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1149201191 is an equidigital number, since it uses as much as digits as its factorization.

1149201191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 29.

The square root of 1149201191 is about 33899.8700734973. The cubic root of 1149201191 is about 1047.4469161587.

The spelling of 1149201191 in words is "one billion, one hundred forty-nine million, two hundred one thousand, one hundred ninety-one".