126716172 has 48 divisors (see below), whose sum is σ = 323686272. Its totient is φ = 38263680.

The previous prime is 126716171. The next prime is 126716179. The reversal of 126716172 is 271617621.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (126716171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39783 + ... + 42849.

It is an arithmetic number, because the mean of its divisors is an integer number (6743464).

Almost surely, 2^126716172 is an apocalyptic number.

126716172 is a gapful number since it is divisible by the number (12) 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 126716172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161843136).

126716172 is an abundant number, since it is smaller than the sum of its proper divisors (196970100).

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

126716172 is a wasteful number, since it uses less digits than its factorization.

126716172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3398 (or 3396 counting only the distinct ones).

The product of its digits is 7056, while the sum is 33.

The square root of 126716172 is about 11256.8277947209. The cubic root of 126716172 is about 502.2778364969.

The spelling of 126716172 in words is "one hundred twenty-six million, seven hundred sixteen thousand, one hundred seventy-two".