126660500 has 24 divisors (see below), whose sum is σ = 276627624. Its totient is φ = 50664000.

The previous prime is 126660493. The next prime is 126660503. The reversal of 126660500 is 5066621.

126660500 = T₄₄₇ + T₄₄₈ + ... + T₉₄₆.

It can be written as a sum of positive squares in 4 ways, for example, as 5924356 + 120736144 = 2434^2 + 10988^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 126660500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126660503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126161 + ... + 127160.

It is an arithmetic number, because the mean of its divisors is an integer number (11526151).

Almost surely, 2^126660500 is an apocalyptic number.

126660500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126660500 is an abundant number, since it is smaller than the sum of its proper divisors (149967124).

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

126660500 is a wasteful number, since it uses less digits than its factorization.

126660500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253340 (or 253328 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 126660500 is about 11254.3547127323. The cubic root of 126660500 is about 502.2042681240.

The spelling of 126660500 in words is "one hundred twenty-six million, six hundred sixty thousand, five hundred".