126128620 has 24 divisors (see below), whose sum is σ = 266036400. Its totient is φ = 50229312.

The previous prime is 126128581. The next prime is 126128641. The reversal of 126128620 is 26821621.

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, 9190 + ... + 18349.

It is an arithmetic number, because the mean of its divisors is an integer number (11084850).

Almost surely, 2^126128620 is an apocalyptic number.

126128620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126128620 is an abundant number, since it is smaller than the sum of its proper divisors (139907780).

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

126128620 is a wasteful number, since it uses less digits than its factorization.

126128620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27777 (or 27775 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 126128620 is about 11230.6998891432. The cubic root of 126128620 is about 501.5003202421.

The spelling of 126128620 in words is "one hundred twenty-six million, one hundred twenty-eight thousand, six hundred twenty".