126505450 has 12 divisors (see below), whose sum is σ = 235300230. Its totient is φ = 50602160.

The previous prime is 126505411. The next prime is 126505469. The reversal of 126505450 is 54505621.

It can be written as a sum of positive squares in 3 ways, for example, as 109390681 + 17114769 = 10459^2 + 4137^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1265005 + ... + 1265104.

Almost surely, 2^126505450 is an apocalyptic number.

126505450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126505450 is a deficient number, since it is larger than the sum of its proper divisors (108794780).

126505450 is a wasteful number, since it uses less digits than its factorization.

126505450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530121 (or 2530116 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 126505450 is about 11247.4641586448. The cubic root of 126505450 is about 501.9992619154. Note that the first 3 decimals are identical.

The spelling of 126505450 in words is "one hundred twenty-six million, five hundred five thousand, four hundred fifty".