11864129 has 4 divisors (see below), whose sum is σ = 12153540. Its totient is φ = 11574720.

The previous prime is 11864107. The next prime is 11864131. The reversal of 11864129 is 92146811.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3610000 + 8254129 = 1900^2 + 2873^2 .

It is a cyclic number.

It is not a de Polignac number, because 11864129 - 2¹⁶ = 11798593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11864095 and 11864104.

It is not an unprimeable number, because it can be changed into a prime (11864429) 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, 144644 + ... + 144725.

It is an arithmetic number, because the mean of its divisors is an integer number (3038385).

Almost surely, 2^11864129 is an apocalyptic number.

It is an amenable number.

11864129 is a deficient number, since it is larger than the sum of its proper divisors (289411).

11864129 is an equidigital number, since it uses as much as digits as its factorization.

11864129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289410.

The product of its digits is 3456, while the sum is 32.

The square root of 11864129 is about 3444.4344964014. The cubic root of 11864129 is about 228.0754918272.

The spelling of 11864129 in words is "eleven million, eight hundred sixty-four thousand, one hundred twenty-nine".