126859530 has 96 divisors (see below), whose sum is σ = 356719680. Its totient is φ = 28788480.

The previous prime is 126859517. The next prime is 126859531. The reversal of 126859530 is 35958621.

It is not an unprimeable number, because it can be changed into a prime (126859531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 309966 + ... + 310374.

It is an arithmetic number, because the mean of its divisors is an integer number (3715830).

Almost surely, 2^126859530 is an apocalyptic number.

126859530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 126859530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178359840).

126859530 is an abundant number, since it is smaller than the sum of its proper divisors (229860150).

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

126859530 is a wasteful number, since it uses less digits than its factorization.

126859530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 637 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 126859530 is about 11263.1935968445. The cubic root of 126859530 is about 502.4671793618.

Subtracting from 126859530 its reverse (35958621), we obtain a palindrome (90900909).

The spelling of 126859530 in words is "one hundred twenty-six million, eight hundred fifty-nine thousand, five hundred thirty".