2231429 has 2 divisors, whose sum is σ = 2231430. Its totient is φ = 2231428.

The previous prime is 2231423. The next prime is 2231431. The reversal of 2231429 is 9241322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1276900 + 954529 = 1130^2 + 977^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231429 - 2⁴ = 2231413 is a prime.

It is a super-3 number, since 3×2231429³ = 33332698459417099767, which contains 333 as substring.

Together with 2231431, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2⁵ + 2¹⁷ + 3⁷ + 1 + 4⁴ + 2²¹ + 9³ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115714 + 1115715.

It is an arithmetic number, because the mean of its divisors is an integer number (1115715).

2^2231429 is an apocalyptic number.

It is an amenable number.

2231429 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231429 is an equidigital number, since it uses as much as digits as its factorization.

2231429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 2231429 is about 1493.7968402698. The cubic root of 2231429 is about 130.6755563101.

The spelling of 2231429 in words is "two million, two hundred thirty-one thousand, four hundred twenty-nine".