1020199145 has 8 divisors (see below), whose sum is σ = 1399130304. Its totient is φ = 699565104.

The previous prime is 1020199139. The next prime is 1020199153. The reversal of 1020199145 is 5419910201.

1020199145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1020199145 - 2²⁴ = 1003421929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14574239 + ... + 14574308.

It is an arithmetic number, because the mean of its divisors is an integer number (174891288).

Almost surely, 2^1020199145 is an apocalyptic number.

It is an amenable number.

1020199145 is a deficient number, since it is larger than the sum of its proper divisors (378931159).

1020199145 is an equidigital number, since it uses as much as digits as its factorization.

1020199145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29148559.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 1020199145 is about 31940.5564290918. The cubic root of 1020199145 is about 1006.6882163688.

The spelling of 1020199145 in words is "one billion, twenty million, one hundred ninety-nine thousand, one hundred forty-five".