1189495147 has 2 divisors, whose sum is σ = 1189495148. Its totient is φ = 1189495146.

The previous prime is 1189495123. The next prime is 1189495169. The reversal of 1189495147 is 7415949811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1189495147 - 2¹⁹ = 1188970859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1189495147.

It is not a weakly prime, because it can be changed into another prime (1189495847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594747573 + 594747574.

It is an arithmetic number, because the mean of its divisors is an integer number (594747574).

Almost surely, 2^1189495147 is an apocalyptic number.

1189495147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1189495147 is an equidigital number, since it uses as much as digits as its factorization.

1189495147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 49.

The square root of 1189495147 is about 34489.0583663863. The cubic root of 1189495147 is about 1059.5486232335.

The spelling of 1189495147 in words is "one billion, one hundred eighty-nine million, four hundred ninety-five thousand, one hundred forty-seven".