126813528 has 24 divisors (see below), whose sum is σ = 343453500. Its totient is φ = 42271152.

The previous prime is 126813527. The next prime is 126813551. The reversal of 126813528 is 825318621.

It is a happy number.

126813528 is a `hidden beast` number, since 126 + 8 + 1 + 3 + 528 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

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

It is a junction number, because it is equal to n+sod(n) for n = 126813492 and 126813501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126813521) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 880578 + ... + 880721.

Almost surely, 2^126813528 is an apocalyptic number.

126813528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

126813528 is an abundant number, since it is smaller than the sum of its proper divisors (216639972).

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

126813528 is a wasteful number, since it uses less digits than its factorization.

126813528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761311 (or 1761304 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 126813528 is about 11261.1512732935. The cubic root of 126813528 is about 502.4064368758.

The spelling of 126813528 in words is "one hundred twenty-six million, eight hundred thirteen thousand, five hundred twenty-eight".