126803121 has 16 divisors (see below), whose sum is σ = 170563008. Its totient is φ = 83793600.

The previous prime is 126803111. The next prime is 126803141. The reversal of 126803121 is 121308621.

It is not a de Polignac number, because 126803121 - 2⁶ = 126803057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126803091 and 126803100.

It is not an unprimeable number, because it can be changed into a prime (126803101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274831 + ... + 275291.

It is an arithmetic number, because the mean of its divisors is an integer number (10660188).

Almost surely, 2^126803121 is an apocalyptic number.

It is an amenable number.

126803121 is a deficient number, since it is larger than the sum of its proper divisors (43759887).

126803121 is a wasteful number, since it uses less digits than its factorization.

126803121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 126803121 is about 11260.6891885000. The cubic root of 126803121 is about 502.3926931085.

The spelling of 126803121 in words is "one hundred twenty-six million, eight hundred three thousand, one hundred twenty-one".