126656630 has 64 divisors (see below), whose sum is σ = 260807040. Its totient is φ = 43997184.

The previous prime is 126656627. The next prime is 126656633. The reversal of 126656630 is 36656621.

It is an interprime number because it is at equal distance from previous prime (126656627) and next prime (126656633).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126656633) 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 31 ways as a sum of consecutive naturals, for example, 112832 + ... + 113948.

It is an arithmetic number, because the mean of its divisors is an integer number (4075110).

Almost surely, 2^126656630 is an apocalyptic number.

126656630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126656630 is an abundant number, since it is smaller than the sum of its proper divisors (134150410).

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

126656630 is a wasteful number, since it uses less digits than its factorization.

126656630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 126656630 is about 11254.1827779719. The cubic root of 126656630 is about 502.1991532689.

Subtracting from 126656630 its reverse (36656621), we obtain a palindrome (90000009).

The spelling of 126656630 in words is "one hundred twenty-six million, six hundred fifty-six thousand, six hundred thirty".