126940229 has 8 divisors (see below), whose sum is σ = 140400120. Its totient is φ = 114008256.

The previous prime is 126940217. The next prime is 126940237. The reversal of 126940229 is 922049621.

It can be written as a sum of positive squares in 4 ways, for example, as 36024004 + 90916225 = 6002^2 + 9535^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126940229 - 2⁴ = 126940213 is a prime.

It is a super-2 number, since 2×126940229² = 32227643477144882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126940249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131474 + ... + 132435.

It is an arithmetic number, because the mean of its divisors is an integer number (17550015).

Almost surely, 2^126940229 is an apocalyptic number.

It is an amenable number.

126940229 is a deficient number, since it is larger than the sum of its proper divisors (13459891).

126940229 is a wasteful number, since it uses less digits than its factorization.

126940229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263959.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 126940229 is about 11266.7754481928. The cubic root of 126940229 is about 502.5737013916.

The spelling of 126940229 in words is "one hundred twenty-six million, nine hundred forty thousand, two hundred twenty-nine".