1144212191 has 2 divisors, whose sum is σ = 1144212192. Its totient is φ = 1144212190.

The previous prime is 1144212169. The next prime is 1144212233. The reversal of 1144212191 is 1912124411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1144212191 - 2⁶ = 1144212127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1144212191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144212491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572106095 + 572106096.

It is an arithmetic number, because the mean of its divisors is an integer number (572106096).

Almost surely, 2^1144212191 is an apocalyptic number.

1144212191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144212191 is an equidigital number, since it uses as much as digits as its factorization.

1144212191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 26.

The square root of 1144212191 is about 33826.2056843507. The cubic root of 1144212191 is about 1045.9289652304.

The spelling of 1144212191 in words is "one billion, one hundred forty-four million, two hundred twelve thousand, one hundred ninety-one".