126669256 has 32 divisors (see below), whose sum is σ = 273119040. Its totient is φ = 53949888.

The previous prime is 126669253. The next prime is 126669259. The reversal of 126669256 is 652966621.

It is an interprime number because it is at equal distance from previous prime (126669253) and next prime (126669259).

It is not an unprimeable number, because it can be changed into a prime (126669253) 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, 2190 + ... + 16066.

It is an arithmetic number, because the mean of its divisors is an integer number (8534970).

Almost surely, 2^126669256 is an apocalyptic number.

It is an amenable number.

126669256 is an abundant number, since it is smaller than the sum of its proper divisors (146449784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126669256 is a wasteful number, since it uses less digits than its factorization.

126669256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14053 (or 14049 counting only the distinct ones).

The product of its digits is 233280, while the sum is 43.

The square root of 126669256 is about 11254.7437109869. The cubic root of 126669256 is about 502.2158402643.

The spelling of 126669256 in words is "one hundred twenty-six million, six hundred sixty-nine thousand, two hundred fifty-six".