126121163 has 8 divisors (see below), whose sum is σ = 147205632. Its totient is φ = 105803496.

The previous prime is 126121141. The next prime is 126121169. The reversal of 126121163 is 361121621.

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 126121163 - 2²² = 121926859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126121169) 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, 191345 + ... + 192002.

It is an arithmetic number, because the mean of its divisors is an integer number (18400704).

Almost surely, 2^126121163 is an apocalyptic number.

126121163 is a deficient number, since it is larger than the sum of its proper divisors (21084469).

126121163 is an equidigital number, since it uses as much as digits as its factorization.

126121163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383401.

The product of its digits is 432, while the sum is 23.

The square root of 126121163 is about 11230.3678924602. The cubic root of 126121163 is about 501.4904367819.

Adding to 126121163 its reverse (361121621), we get a palindrome (487242784).

The spelling of 126121163 in words is "one hundred twenty-six million, one hundred twenty-one thousand, one hundred sixty-three".