126557064 has 48 divisors (see below), whose sum is σ = 346311420. Its totient is φ = 41748480.

The previous prime is 126557059. The next prime is 126557071. The reversal of 126557064 is 460755621.

It is a happy number.

126557064 is a `hidden beast` number, since 1 + 26 + 5 + 570 + 64 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 125216100 + 1340964 = 11190^2 + 1158^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2077 + ... + 16044.

Almost surely, 2^126557064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126557064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173155710).

126557064 is an abundant number, since it is smaller than the sum of its proper divisors (219754356).

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

126557064 is a wasteful number, since it uses less digits than its factorization.

126557064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18230 (or 18223 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 126557064 is about 11249.7583974057. The cubic root of 126557064 is about 502.0675242365.

The spelling of 126557064 in words is "one hundred twenty-six million, five hundred fifty-seven thousand, sixty-four".