126394121 has 8 divisors (see below), whose sum is σ = 144862464. Its totient is φ = 108028800.

The previous prime is 126394091. The next prime is 126394123. The reversal of 126394121 is 121493621.

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 126394121 - 2⁶ = 126394057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126394123) 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 7 ways as a sum of consecutive naturals, for example, 23105 + ... + 28046.

It is an arithmetic number, because the mean of its divisors is an integer number (18107808).

Almost surely, 2^126394121 is an apocalyptic number.

It is an amenable number.

126394121 is a deficient number, since it is larger than the sum of its proper divisors (18468343).

126394121 is an equidigital number, since it uses as much as digits as its factorization.

126394121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51511.

The product of its digits is 2592, while the sum is 29.

The square root of 126394121 is about 11242.5139982123. The cubic root of 126394121 is about 501.8519600191.

The spelling of 126394121 in words is "one hundred twenty-six million, three hundred ninety-four thousand, one hundred twenty-one".