1009520117 has 4 divisors (see below), whose sum is σ = 1053412320. Its totient is φ = 965627916.

The previous prime is 1009520101. The next prime is 1009520137. The reversal of 1009520117 is 7110259001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7110259001 = 57593 ⋅123457.

It is a cyclic number.

It is not a de Polignac number, because 1009520117 - 2⁴ = 1009520101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009520137) 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, 21946067 + ... + 21946112.

It is an arithmetic number, because the mean of its divisors is an integer number (263353080).

Almost surely, 2^1009520117 is an apocalyptic number.

It is an amenable number.

1009520117 is a deficient number, since it is larger than the sum of its proper divisors (43892203).

1009520117 is an equidigital number, since it uses as much as digits as its factorization.

1009520117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43892202.

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 1009520117 is about 31772.9463065672. The cubic root of 1009520117 is about 1003.1633549670.

Adding to 1009520117 its reverse (7110259001), we get a palindrome (8119779118).

The spelling of 1009520117 in words is "one billion, nine million, five hundred twenty thousand, one hundred seventeen".