126555252 has 12 divisors (see below), whose sum is σ = 295295616. Its totient is φ = 42185080.

The previous prime is 126555239. The next prime is 126555287. The reversal of 126555252 is 252555621.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

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 3 ways as a sum of consecutive naturals, for example, 5273124 + ... + 5273147.

It is an arithmetic number, because the mean of its divisors is an integer number (24607968).

Almost surely, 2^126555252 is an apocalyptic number.

126555252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

126555252 is an abundant number, since it is smaller than the sum of its proper divisors (168740364).

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

126555252 is a wasteful number, since it uses less digits than its factorization.

126555252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10546278 (or 10546276 counting only the distinct ones).

The product of its digits is 30000, while the sum is 33.

The square root of 126555252 is about 11249.6778620545. The cubic root of 126555252 is about 502.0651280823.

The spelling of 126555252 in words is "one hundred twenty-six million, five hundred fifty-five thousand, two hundred fifty-two".