1013371809 has 4 divisors (see below), whose sum is σ = 1351162416. Its totient is φ = 675581204.

The previous prime is 1013371757. The next prime is 1013371813. The reversal of 1013371809 is 9081733101.

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.

It is a cyclic number.

It is not a de Polignac number, because 1013371809 - 2⁸ = 1013371553 is a prime.

It is a super-3 number, since 3×1013371809³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1013371809.

It is not an unprimeable number, because it can be changed into a prime (1013371409) 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, 168895299 + ... + 168895304.

It is an arithmetic number, because the mean of its divisors is an integer number (337790604).

Almost surely, 2^1013371809 is an apocalyptic number.

It is an amenable number.

1013371809 is a deficient number, since it is larger than the sum of its proper divisors (337790607).

1013371809 is an equidigital number, since it uses as much as digits as its factorization.

1013371809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337790606.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 1013371809 is about 31833.5013625583. The cubic root of 1013371809 is about 1004.4375487004.

The spelling of 1013371809 in words is "one billion, thirteen million, three hundred seventy-one thousand, eight hundred nine".