1150530491497 has 4 divisors (see below), whose sum is σ = 1150574906880. Its totient is φ = 1150486076116.

The previous prime is 1150530491483. The next prime is 1150530491501. The reversal of 1150530491497 is 7941940350511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1150530491497 - 2²⁷ = 1150396273769 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1150530491497.

It is not an unprimeable number, because it can be changed into a prime (1150530491447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22168813 + ... + 22220650.

It is an arithmetic number, because the mean of its divisors is an integer number (287643726720).

Almost surely, 2^{1150530491497} is an apocalyptic number.

It is an amenable number.

1150530491497 is a deficient number, since it is larger than the sum of its proper divisors (44415383).

1150530491497 is an equidigital number, since it uses as much as digits as its factorization.

1150530491497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44415382.

The product of its (nonzero) digits is 680400, while the sum is 49.

The spelling of 1150530491497 in words is "one trillion, one hundred fifty billion, five hundred thirty million, four hundred ninety-one thousand, four hundred ninety-seven".