11156429 has 2 divisors, whose sum is σ = 11156430. Its totient is φ = 11156428.

The previous prime is 11156423. The next prime is 11156441. The reversal of 11156429 is 92465111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6325225 + 4831204 = 2515^2 + 2198^2 .

It is a cyclic number.

It is not a de Polignac number, because 11156429 - 2⁴ = 11156413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11156423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5578214 + 5578215.

It is an arithmetic number, because the mean of its divisors is an integer number (5578215).

Almost surely, 2^11156429 is an apocalyptic number.

It is an amenable number.

11156429 is a deficient number, since it is larger than the sum of its proper divisors (1).

11156429 is an equidigital number, since it uses as much as digits as its factorization.

11156429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 29.

The square root of 11156429 is about 3340.1240994909. The cubic root of 11156429 is about 223.4472780600.

The spelling of 11156429 in words is "eleven million, one hundred fifty-six thousand, four hundred twenty-nine".