1201883647 has 4 divisors (see below), whose sum is σ = 1201953016. Its totient is φ = 1201814280.

The previous prime is 1201883611. The next prime is 1201883659. The reversal of 1201883647 is 7463881021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7463881021 = 131 ⋅56976191.

It is a cyclic number.

It is not a de Polignac number, because 1201883647 - 2⁷ = 1201883519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201881647) 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, 15772 + ... + 51502.

It is an arithmetic number, because the mean of its divisors is an integer number (300488254).

Almost surely, 2^1201883647 is an apocalyptic number.

1201883647 is a deficient number, since it is larger than the sum of its proper divisors (69369).

1201883647 is an equidigital number, since it uses as much as digits as its factorization.

1201883647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69368.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 1201883647 is about 34668.1935929751. The cubic root of 1201883647 is about 1063.2142989582.

The spelling of 1201883647 in words is "one billion, two hundred one million, eight hundred eighty-three thousand, six hundred forty-seven".