1008997201 has 4 divisors (see below), whose sum is σ = 1019399332. Its totient is φ = 998595072.

The previous prime is 1008997151. The next prime is 1008997237. The reversal of 1008997201 is 1027998001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 547606801 + 461390400 = 23401^2 + 21480^2 .

It is a cyclic number.

It is not a de Polignac number, because 1008997201 - 2⁹ = 1008996689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1008997901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5200920 + ... + 5201113.

It is an arithmetic number, because the mean of its divisors is an integer number (254849833).

Almost surely, 2^1008997201 is an apocalyptic number.

It is an amenable number.

1008997201 is a deficient number, since it is larger than the sum of its proper divisors (10402131).

1008997201 is an equidigital number, since it uses as much as digits as its factorization.

1008997201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10402130.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 1008997201 is about 31764.7162902488. The cubic root of 1008997201 is about 1002.9901172873.

The spelling of 1008997201 in words is "one billion, eight million, nine hundred ninety-seven thousand, two hundred one".