11299905 has 20 divisors (see below), whose sum is σ = 20256852. Its totient is φ = 6026400.

The previous prime is 11299901. The next prime is 11299909. The reversal of 11299905 is 50999211.

It is an interprime number because it is at equal distance from previous prime (11299901) and next prime (11299909).

It can be written as a sum of positive squares in 2 ways, for example, as 7485696 + 3814209 = 2736^2 + 1953^2 .

It is not a de Polignac number, because 11299905 - 2² = 11299901 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 11299905.

It is not an unprimeable number, because it can be changed into a prime (11299901) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13546 + ... + 14355.

Almost surely, 2^11299905 is an apocalyptic number.

11299905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11299905 is a deficient number, since it is larger than the sum of its proper divisors (8956947).

11299905 is an equidigital number, since it uses as much as digits as its factorization.

11299905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27918 (or 27909 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 36.

The square root of 11299905 is about 3361.5331323668. The cubic root of 11299905 is about 224.4010738031.

The spelling of 11299905 in words is "eleven million, two hundred ninety-nine thousand, nine hundred five".