126121230 has 48 divisors (see below), whose sum is σ = 329148144. Its totient is φ = 33505920.

The previous prime is 126121223. The next prime is 126121231. The reversal of 126121230 is 32121621.

126121230 is a `hidden beast` number, since 12 + 612 + 12 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126121231) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 22797 + ... + 27783.

It is an arithmetic number, because the mean of its divisors is an integer number (6857253).

Almost surely, 2^126121230 is an apocalyptic number.

126121230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126121230 is an abundant number, since it is smaller than the sum of its proper divisors (203026914).

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

126121230 is a wasteful number, since it uses less digits than its factorization.

126121230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5281 (or 5278 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 126121230 is about 11230.3708754431. The cubic root of 126121230 is about 501.4905255850.

Adding to 126121230 its reverse (32121621), we get a palindrome (158242851).

The spelling of 126121230 in words is "one hundred twenty-six million, one hundred twenty-one thousand, two hundred thirty".