126521030 has 8 divisors (see below), whose sum is σ = 227737872. Its totient is φ = 50608408.

The previous prime is 126521029. The next prime is 126521033. The reversal of 126521030 is 30125621.

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 = 126520993 and 126521011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126521033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6326042 + ... + 6326061.

It is an arithmetic number, because the mean of its divisors is an integer number (28467234).

Almost surely, 2^126521030 is an apocalyptic number.

126521030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126521030 is a deficient number, since it is larger than the sum of its proper divisors (101216842).

126521030 is a wasteful number, since it uses less digits than its factorization.

126521030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12652110.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 126521030 is about 11248.1567378838. The cubic root of 126521030 is about 502.0198692685.

Adding to 126521030 its reverse (30125621), we get a palindrome (156646651).

The spelling of 126521030 in words is "one hundred twenty-six million, five hundred twenty-one thousand, thirty".