11315129 has 12 divisors (see below), whose sum is σ = 13413924. Its totient is φ = 9513504.

The previous prime is 11315123. The next prime is 11315137. The reversal of 11315129 is 92151311.

It can be written as a sum of positive squares in 2 ways, for example, as 10368400 + 946729 = 3220^2 + 973^2 .

It is not a de Polignac number, because 11315129 - 2¹² = 11311033 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11315123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 419 + ... + 4775.

It is an arithmetic number, because the mean of its divisors is an integer number (1117827).

Almost surely, 2^11315129 is an apocalyptic number.

It is an amenable number.

11315129 is a deficient number, since it is larger than the sum of its proper divisors (2098795).

11315129 is an equidigital number, since it uses as much as digits as its factorization.

11315129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4424 (or 4417 counting only the distinct ones).

The product of its digits is 270, while the sum is 23.

The square root of 11315129 is about 3363.7968131265. The cubic root of 11315129 is about 224.5018047054.

The spelling of 11315129 in words is "eleven million, three hundred fifteen thousand, one hundred twenty-nine".