1009351001 has 4 divisors (see below), whose sum is σ = 1010116404. Its totient is φ = 1008585600.

The previous prime is 1009350989. The next prime is 1009351037. The reversal of 1009351001 is 1001539001.

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 770617600 + 238733401 = 27760^2 + 15451^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1009351001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1009351051) 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, 380720 + ... + 383361.

It is an arithmetic number, because the mean of its divisors is an integer number (252529101).

Almost surely, 2^1009351001 is an apocalyptic number.

It is an amenable number.

1009351001 is a deficient number, since it is larger than the sum of its proper divisors (765403).

1009351001 is an equidigital number, since it uses as much as digits as its factorization.

1009351001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765402.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 1009351001 is about 31770.2848743917. The cubic root of 1009351001 is about 1003.1073348028.

The spelling of 1009351001 in words is "one billion, nine million, three hundred fifty-one thousand, one".