11572129 has 2 divisors, whose sum is σ = 11572130. Its totient is φ = 11572128.

The previous prime is 11572079. The next prime is 11572133. The reversal of 11572129 is 92127511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9138529 + 2433600 = 3023^2 + 1560^2 .

It is a cyclic number.

It is not a de Polignac number, because 11572129 - 2⁹ = 11571617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11572097 and 11572106.

It is not a weakly prime, because it can be changed into another prime (11570129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5786064 + 5786065.

It is an arithmetic number, because the mean of its divisors is an integer number (5786065).

Almost surely, 2^11572129 is an apocalyptic number.

It is an amenable number.

11572129 is a deficient number, since it is larger than the sum of its proper divisors (1).

11572129 is an equidigital number, since it uses as much as digits as its factorization.

11572129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260, while the sum is 28.

The square root of 11572129 is about 3401.7832088480. The cubic root of 11572129 is about 226.1887959557.

The spelling of 11572129 in words is "eleven million, five hundred seventy-two thousand, one hundred twenty-nine".