1009194245 has 6 divisors (see below), whose sum is σ = 1211118342. Its totient is φ = 807298568.

The previous prime is 1009194223. The next prime is 1009194259. The reversal of 1009194245 is 5424919001.

1009194245 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 807355396 + 201838849 = 28414^2 + 14207^2 .

It is not a de Polignac number, because 1009194245 - 2¹⁰ = 1009193221 is a prime.

It is a super-2 number, since 2×1009194245² = 2036946048282240050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 63932 + ... + 78138.

It is an arithmetic number, because the mean of its divisors is an integer number (201853057).

Almost surely, 2^1009194245 is an apocalyptic number.

It is an amenable number.

1009194245 is a deficient number, since it is larger than the sum of its proper divisors (201924097).

1009194245 is an frugal number, since it uses more digits than its factorization.

1009194245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28419 (or 14212 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 1009194245 is about 31767.8177563395. The cubic root of 1009194245 is about 1003.0554033359.

The spelling of 1009194245 in words is "one billion, nine million, one hundred ninety-four thousand, two hundred forty-five".