126938216 has 8 divisors (see below), whose sum is σ = 238009170. Its totient is φ = 63469104.

The previous prime is 126938213. The next prime is 126938243. The reversal of 126938216 is 612839621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 117635716 + 9302500 = 10846^2 + 3050^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×126938216² = 32226621362525312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126938216.

It is not an unprimeable number, because it can be changed into a prime (126938213) 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 as a sum of consecutive naturals, namely, 7933631 + ... + 7933646.

Almost surely, 2^126938216 is an apocalyptic number.

It is an amenable number.

126938216 is a deficient number, since it is larger than the sum of its proper divisors (111070954).

126938216 is a wasteful number, since it uses less digits than its factorization.

126938216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15867283 (or 15867279 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 126938216 is about 11266.6861143816. The cubic root of 126938216 is about 502.5710447969.

The spelling of 126938216 in words is "one hundred twenty-six million, nine hundred thirty-eight thousand, two hundred sixteen".