126503530 has 8 divisors (see below), whose sum is σ = 227706372. Its totient is φ = 50601408.

The previous prime is 126503513. The next prime is 126503561. The reversal of 126503530 is 35305621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 112508449 + 13995081 = 10607^2 + 3741^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 126503495 and 126503504.

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, 6325167 + ... + 6325186.

Almost surely, 2^126503530 is an apocalyptic number.

126503530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126503530 is a deficient number, since it is larger than the sum of its proper divisors (101202842).

126503530 is a wasteful number, since it uses less digits than its factorization.

126503530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12650360.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 126503530 is about 11247.3788057485. The cubic root of 126503530 is about 501.9967222528.

The spelling of 126503530 in words is "one hundred twenty-six million, five hundred three thousand, five hundred thirty".