1119661247 has 2 divisors, whose sum is σ = 1119661248. Its totient is φ = 1119661246.

The previous prime is 1119661243. The next prime is 1119661273. The reversal of 1119661247 is 7421669111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1119661247 - 2² = 1119661243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1119661247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1119661243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559830623 + 559830624.

It is an arithmetic number, because the mean of its divisors is an integer number (559830624).

Almost surely, 2^1119661247 is an apocalyptic number.

1119661247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1119661247 is an equidigital number, since it uses as much as digits as its factorization.

1119661247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 38.

The square root of 1119661247 is about 33461.3395876495. The cubic root of 1119661247 is about 1038.3941090415.

The spelling of 1119661247 in words is "one billion, one hundred nineteen million, six hundred sixty-one thousand, two hundred forty-seven".