11953129 has 2 divisors, whose sum is σ = 11953130. Its totient is φ = 11953128.

The previous prime is 11953127. The next prime is 11953163. The reversal of 11953129 is 92135911.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11560000 + 393129 = 3400^2 + 627^2 .

It is a cyclic number.

It is not a de Polignac number, because 11953129 - 2¹ = 11953127 is a prime.

Together with 11953127, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11953129.

It is not a weakly prime, because it can be changed into another prime (11953121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5976564 + 5976565.

It is an arithmetic number, because the mean of its divisors is an integer number (5976565).

Almost surely, 2^11953129 is an apocalyptic number.

It is an amenable number.

11953129 is a deficient number, since it is larger than the sum of its proper divisors (1).

11953129 is an equidigital number, since it uses as much as digits as its factorization.

11953129 is an evil number, because the sum of its binary digits is even.

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

The square root of 11953129 is about 3457.3297499660. The cubic root of 11953129 is about 228.6443823488.

The spelling of 11953129 in words is "eleven million, nine hundred fifty-three thousand, one hundred twenty-nine".