1201150983 has 4 divisors (see below), whose sum is σ = 1601534648. Its totient is φ = 800767320.

The previous prime is 1201150981. The next prime is 1201150991. The reversal of 1201150983 is 3890511021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1201150983 - 2¹ = 1201150981 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 1201150983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201150981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200191828 + ... + 200191833.

It is an arithmetic number, because the mean of its divisors is an integer number (400383662).

Almost surely, 2^1201150983 is an apocalyptic number.

1201150983 is a deficient number, since it is larger than the sum of its proper divisors (400383665).

1201150983 is an equidigital number, since it uses as much as digits as its factorization.

1201150983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400383664.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 1201150983 is about 34657.6251783067. The cubic root of 1201150983 is about 1062.9982111574.

The spelling of 1201150983 in words is "one billion, two hundred one million, one hundred fifty thousand, nine hundred eighty-three".