126520426 has 24 divisors (see below), whose sum is σ = 204598980. Its totient is φ = 58475136.

The previous prime is 126520423. The next prime is 126520451. The reversal of 126520426 is 624025621.

It can be written as a sum of positive squares in 2 ways, for example, as 124344801 + 2175625 = 11151^2 + 1475^2 .

It is a junction number, because it is equal to n+sod(n) for n = 126520394 and 126520403.

It is not an unprimeable number, because it can be changed into a prime (126520423) 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 11 ways as a sum of consecutive naturals, for example, 117820 + ... + 118888.

Almost surely, 2^126520426 is an apocalyptic number.

126520426 is a deficient number, since it is larger than the sum of its proper divisors (78078554).

126520426 is a wasteful number, since it uses less digits than its factorization.

126520426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206 (or 1147 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 126520426 is about 11248.1298890082. The cubic root of 126520426 is about 502.0190704014.

The spelling of 126520426 in words is "one hundred twenty-six million, five hundred twenty thousand, four hundred twenty-six".