788126121 has 12 divisors (see below), whose sum is σ = 1138651072. Its totient is φ = 525303576.

The previous prime is 788126117. The next prime is 788126123. The reversal of 788126121 is 121621887.

It is not a de Polignac number, because 788126121 - 2² = 788126117 is a prime.

It is a super-2 number, since 2×788126121² = 1242285565205013282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (788126123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65820 + ... + 76866.

Almost surely, 2^788126121 is an apocalyptic number.

It is an amenable number.

788126121 is a deficient number, since it is larger than the sum of its proper divisors (350524951).

788126121 is a wasteful number, since it uses less digits than its factorization.

788126121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18980 (or 18977 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 788126121 is about 28073.5840426548. The cubic root of 788126121 is about 923.7020494616.

The spelling of 788126121 in words is "seven hundred eighty-eight million, one hundred twenty-six thousand, one hundred twenty-one".