126871572 has 24 divisors (see below), whose sum is σ = 296805600. Its totient is φ = 42180256.

The previous prime is 126871571. The next prime is 126871573. The reversal of 126871572 is 275178621.

It is an interprime number because it is at equal distance from previous prime (126871571) and next prime (126871573).

It is a self number, because there is not a number n which added to its sum of digits gives 126871572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126871571) 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, 8922 + ... + 18257.

It is an arithmetic number, because the mean of its divisors is an integer number (12366900).

Almost surely, 2^126871572 is an apocalyptic number.

126871572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

126871572 is an abundant number, since it is smaller than the sum of its proper divisors (169934028).

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

126871572 is a wasteful number, since it uses less digits than its factorization.

126871572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27575 (or 27573 counting only the distinct ones).

The product of its digits is 47040, while the sum is 39.

The square root of 126871572 is about 11263.7281572311. The cubic root of 126871572 is about 502.4830775717.

The spelling of 126871572 in words is "one hundred twenty-six million, eight hundred seventy-one thousand, five hundred seventy-two".