1201065518 has 4 divisors (see below), whose sum is σ = 1801598280. Its totient is φ = 600532758.

The previous prime is 1201065511. The next prime is 1201065529. The reversal of 1201065518 is 8155601021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8155601021 = 19 ⋅429242159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201065511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300266378 + ... + 300266381.

It is an arithmetic number, because the mean of its divisors is an integer number (450399570).

Almost surely, 2^1201065518 is an apocalyptic number.

1201065518 is a deficient number, since it is larger than the sum of its proper divisors (600532762).

1201065518 is an equidigital number, since it uses as much as digits as its factorization.

1201065518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600532761.

The product of its (nonzero) digits is 2400, while the sum is 29.

The square root of 1201065518 is about 34656.3921665254. The cubic root of 1201065518 is about 1062.9729988684.

Adding to 1201065518 its reverse (8155601021), we get a palindrome (9356666539).

The spelling of 1201065518 in words is "one billion, two hundred one million, sixty-five thousand, five hundred eighteen".