126700520 has 16 divisors (see below), whose sum is σ = 285076260. Its totient is φ = 50680192.

The previous prime is 126700501. The next prime is 126700523. The reversal of 126700520 is 25007621.

It can be written as a sum of positive squares in 2 ways, for example, as 105226564 + 21473956 = 10258^2 + 4634^2 .

It is not an unprimeable number, because it can be changed into a prime (126700523) 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, 1583717 + ... + 1583796.

Almost surely, 2^126700520 is an apocalyptic number.

126700520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126700520 is an abundant number, since it is smaller than the sum of its proper divisors (158375740).

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

126700520 is a wasteful number, since it uses less digits than its factorization.

126700520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167524 (or 3167520 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 126700520 is about 11256.1325507476. The cubic root of 126700520 is about 502.2571551682.

The spelling of 126700520 in words is "one hundred twenty-six million, seven hundred thousand, five hundred twenty".