126055121 has 8 divisors (see below), whose sum is σ = 127659840. Its totient is φ = 124458768.

The previous prime is 126055117. The next prime is 126055129. The reversal of 126055121 is 121550621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126055121 - 2² = 126055117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126055129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31580 + ... + 35346.

It is an arithmetic number, because the mean of its divisors is an integer number (15957480).

Almost surely, 2^126055121 is an apocalyptic number.

It is an amenable number.

126055121 is a deficient number, since it is larger than the sum of its proper divisors (1604719).

126055121 is a wasteful number, since it uses less digits than its factorization.

126055121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4183.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 126055121 is about 11227.4271763392. The cubic root of 126055121 is about 501.4028881284.

The spelling of 126055121 in words is "one hundred twenty-six million, fifty-five thousand, one hundred twenty-one".