1009265011 has 4 divisors (see below), whose sum is σ = 1010486232. Its totient is φ = 1008043792.

The previous prime is 1009264999. The next prime is 1009265029. The reversal of 1009265011 is 1105629001.

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

It is a cyclic number.

It is not a de Polignac number, because 1009265011 - 2¹³ = 1009256819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1009260011) 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, 609370 + ... + 611023.

It is an arithmetic number, because the mean of its divisors is an integer number (252621558).

Almost surely, 2^1009265011 is an apocalyptic number.

1009265011 is a deficient number, since it is larger than the sum of its proper divisors (1221221).

1009265011 is an equidigital number, since it uses as much as digits as its factorization.

1009265011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221220.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 1009265011 is about 31768.9315369592. The cubic root of 1009265011 is about 1003.0788479668.

The spelling of 1009265011 in words is "one billion, nine million, two hundred sixty-five thousand, eleven".