1099545149239 has 2 divisors, whose sum is σ = 1099545149240. Its totient is φ = 1099545149238.

The previous prime is 1099545149233. The next prime is 1099545149257. The reversal of 1099545149239 is 9329415459901.

It is a weak prime.

It is an emirp because it is prime and its reverse (9329415459901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1099545149239 - 2¹¹ = 1099545147191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1099545149233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549772574619 + 549772574620.

It is an arithmetic number, because the mean of its divisors is an integer number (549772574620).

Almost surely, 2^{1099545149239} is an apocalyptic number.

1099545149239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099545149239 is an equidigital number, since it uses as much as digits as its factorization.

1099545149239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15746400, while the sum is 61.

The spelling of 1099545149239 in words is "one trillion, ninety-nine billion, five hundred forty-five million, one hundred forty-nine thousand, two hundred thirty-nine".