126141720 has 32 divisors (see below), whose sum is σ = 378425520. Its totient is φ = 33637760.

The previous prime is 126141713. The next prime is 126141721. The reversal of 126141720 is 27141621.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126141721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525471 + ... + 525710.

Almost surely, 2^126141720 is an apocalyptic number.

126141720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126141720 is an abundant number, since it is smaller than the sum of its proper divisors (252283800).

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

126141720 is a wasteful number, since it uses less digits than its factorization.

126141720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051195 (or 1051191 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 126141720 is about 11231.2830967793. The cubic root of 126141720 is about 501.5176819553.

Subtracting from 126141720 its reverse (27141621), we obtain a palindrome (99000099).

The spelling of 126141720 in words is "one hundred twenty-six million, one hundred forty-one thousand, seven hundred twenty".