126473856 has 64 divisors (see below), whose sum is σ = 337228320. Its totient is φ = 41997312.

The previous prime is 126473833. The next prime is 126473857. The reversal of 126473856 is 658374621.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (126473857) 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, 142791 + ... + 143673.

Almost surely, 2^126473856 is an apocalyptic number.

126473856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126473856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168614160).

126473856 is an abundant number, since it is smaller than the sum of its proper divisors (210754464).

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

126473856 is an equidigital number, since it uses as much as digits as its factorization.

126473856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273 (or 1261 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 126473856 is about 11246.0595765806. The cubic root of 126473856 is about 501.9574679711.

The spelling of 126473856 in words is "one hundred twenty-six million, four hundred seventy-three thousand, eight hundred fifty-six".