126200020 has 24 divisors (see below), whose sum is σ = 266805000. Its totient is φ = 50140032.

The previous prime is 126200017. The next prime is 126200059. The reversal of 126200020 is 20002621.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19945156 + 106254864 = 4466^2 + 10308^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18195 + ... + 24154.

It is an arithmetic number, because the mean of its divisors is an integer number (11116875).

Almost surely, 2^126200020 is an apocalyptic number.

126200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126200020 is an abundant number, since it is smaller than the sum of its proper divisors (140604980).

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

126200020 is a wasteful number, since it uses less digits than its factorization.

126200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42507 (or 42505 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 126200020 is about 11233.8782261515. The cubic root of 126200020 is about 501.5949336305.

Adding to 126200020 its reverse (20002621), we get a palindrome (146202641).

The spelling of 126200020 in words is "one hundred twenty-six million, two hundred thousand, twenty".