126617280 has 56 divisors (see below), whose sum is σ = 402012912. Its totient is φ = 33764352.

The previous prime is 126617251. The next prime is 126617287. The reversal of 126617280 is 82716621.

It is not an unprimeable number, because it can be changed into a prime (126617287) 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, 64987 + ... + 66906.

It is an arithmetic number, because the mean of its divisors is an integer number (7178802).

Almost surely, 2^126617280 is an apocalyptic number.

126617280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126617280 is an abundant number, since it is smaller than the sum of its proper divisors (275395632).

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

126617280 is a wasteful number, since it uses less digits than its factorization.

126617280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131913 (or 131903 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 126617280 is about 11252.4344032747. The cubic root of 126617280 is about 502.1471397171.

The spelling of 126617280 in words is "one hundred twenty-six million, six hundred seventeen thousand, two hundred eighty".