126955816 has 16 divisors (see below), whose sum is σ = 256353300. Its totient is φ = 58594944.

The previous prime is 126955811. The next prime is 126955861. The reversal of 126955816 is 618559621.

It can be written as a sum of positive squares in 2 ways, for example, as 124233316 + 2722500 = 11146^2 + 1650^2 .

It is a super-2 number, since 2×126955816² = 32235558432451712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126955811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610261 + ... + 610468.

Almost surely, 2^126955816 is an apocalyptic number.

It is an amenable number.

126955816 is an abundant number, since it is smaller than the sum of its proper divisors (129397484).

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

126955816 is a wasteful number, since it uses less digits than its factorization.

126955816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220748 (or 1220744 counting only the distinct ones).

The product of its digits is 129600, while the sum is 43.

The square root of 126955816 is about 11267.4671510504. The cubic root of 126955816 is about 502.5942709035.

The spelling of 126955816 in words is "one hundred twenty-six million, nine hundred fifty-five thousand, eight hundred sixteen".