126447456 has 24 divisors (see below), whose sum is σ = 331924824. Its totient is φ = 42149120.

The previous prime is 126447427. The next prime is 126447457. The reversal of 126447456 is 654744621.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126447457) 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, 658485 + ... + 658676.

It is an arithmetic number, because the mean of its divisors is an integer number (13830201).

Almost surely, 2^126447456 is an apocalyptic number.

126447456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

126447456 is an abundant number, since it is smaller than the sum of its proper divisors (205477368).

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

126447456 is a wasteful number, since it uses less digits than its factorization.

126447456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317174 (or 1317166 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The square root of 126447456 is about 11244.8857708738. The cubic root of 126447456 is about 501.9225395421.

It can be divided in two parts, 12644 and 7456, that added together give a triangular number (20100 = T₂₀₀).

The spelling of 126447456 in words is "one hundred twenty-six million, four hundred forty-seven thousand, four hundred fifty-six".