126021750 has 32 divisors (see below), whose sum is σ = 314552160. Its totient is φ = 33605600.

The previous prime is 126021743. The next prime is 126021751. The reversal of 126021750 is 57120621.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 126021750.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126021751) 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, 83265 + ... + 84764.

It is an arithmetic number, because the mean of its divisors is an integer number (9829755).

Almost surely, 2^126021750 is an apocalyptic number.

126021750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126021750 is an abundant number, since it is smaller than the sum of its proper divisors (188530410).

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

126021750 is a wasteful number, since it uses less digits than its factorization.

126021750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168049 (or 168039 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 126021750 is about 11225.9409405181. The cubic root of 126021750 is about 501.3586381940.

The spelling of 126021750 in words is "one hundred twenty-six million, twenty-one thousand, seven hundred fifty".