1013215099 has 4 divisors (see below), whose sum is σ = 1091154736. Its totient is φ = 935275464.

The previous prime is 1013215097. The next prime is 1013215123. The reversal of 1013215099 is 9905123101.

It is a happy number.

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 1013215099 - 2¹ = 1013215097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1013215099.

It is not an unprimeable number, because it can be changed into a prime (1013215097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38969799 + ... + 38969824.

It is an arithmetic number, because the mean of its divisors is an integer number (272788684).

Almost surely, 2^1013215099 is an apocalyptic number.

1013215099 is a deficient number, since it is larger than the sum of its proper divisors (77939637).

1013215099 is an equidigital number, since it uses as much as digits as its factorization.

1013215099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77939636.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 1013215099 is about 31831.0398667716. The cubic root of 1013215099 is about 1004.3857699023.

The spelling of 1013215099 in words is "one billion, thirteen million, two hundred fifteen thousand, ninety-nine".