126647860 has 12 divisors (see below), whose sum is σ = 265960548. Its totient is φ = 50659136.

The previous prime is 126647827. The next prime is 126647861. The reversal of 126647860 is 68746621.

It can be written as a sum of positive squares in 2 ways, for example, as 39262756 + 87385104 = 6266^2 + 9348^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126647861) 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, 3166177 + ... + 3166216.

It is an arithmetic number, because the mean of its divisors is an integer number (22163379).

Almost surely, 2^126647860 is an apocalyptic number.

126647860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126647860 is an abundant number, since it is smaller than the sum of its proper divisors (139312688).

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

126647860 is a wasteful number, since it uses less digits than its factorization.

126647860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6332402 (or 6332400 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 126647860 is about 11253.7931383156. The cubic root of 126647860 is about 502.1875618550.

The spelling of 126647860 in words is "one hundred twenty-six million, six hundred forty-seven thousand, eight hundred sixty".