126921448 has 16 divisors (see below), whose sum is σ = 240335460. Its totient is φ = 62832000.

The previous prime is 126921437. The next prime is 126921451. The reversal of 126921448 is 844129621.

It can be written as a sum of positive squares in 2 ways, for example, as 126832644 + 88804 = 11262^2 + 298^2 .

It is a super-2 number, since 2×126921448² = 32218107924833408, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 77733 + ... + 79348.

Almost surely, 2^126921448 is an apocalyptic number.

It is an amenable number.

126921448 is a deficient number, since it is larger than the sum of its proper divisors (113414012).

126921448 is a wasteful number, since it uses less digits than its factorization.

126921448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157188 (or 157184 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 126921448 is about 11265.9419490782. The cubic root of 126921448 is about 502.5489146546.

The spelling of 126921448 in words is "one hundred twenty-six million, nine hundred twenty-one thousand, four hundred forty-eight".