11142129 has 4 divisors (see below), whose sum is σ = 14856176. Its totient is φ = 7428084.

The previous prime is 11142107. The next prime is 11142181. The reversal of 11142129 is 92124111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11142129 - 2¹² = 11138033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11142029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1857019 + ... + 1857024.

It is an arithmetic number, because the mean of its divisors is an integer number (3714044).

Almost surely, 2^11142129 is an apocalyptic number.

It is an amenable number.

11142129 is a deficient number, since it is larger than the sum of its proper divisors (3714047).

11142129 is an equidigital number, since it uses as much as digits as its factorization.

11142129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3714046.

The product of its digits is 144, while the sum is 21.

The square root of 11142129 is about 3337.9827740718. The cubic root of 11142129 is about 223.3517677415.

The spelling of 11142129 in words is "eleven million, one hundred forty-two thousand, one hundred twenty-nine".