126532644 has 24 divisors (see below), whose sum is σ = 337420608. Its totient is φ = 36152160.

The previous prime is 126532633. The next prime is 126532657. The reversal of 126532644 is 446235621.

126532644 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

126532644 is strictly pandigital in base 9.

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 7 ways as a sum of consecutive naturals, for example, 753087 + ... + 753254.

It is an arithmetic number, because the mean of its divisors is an integer number (14059192).

Almost surely, 2^126532644 is an apocalyptic number.

126532644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

126532644 is an abundant number, since it is smaller than the sum of its proper divisors (210887964).

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

126532644 is a wasteful number, since it uses less digits than its factorization.

126532644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506355 (or 1506353 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 126532644 is about 11248.6729884018. The cubic root of 126532644 is about 502.0352297725.

The spelling of 126532644 in words is "one hundred twenty-six million, five hundred thirty-two thousand, six hundred forty-four".