778230131 has 16 divisors (see below), whose sum is σ = 957170880. Its totient is φ = 617518080.

The previous prime is 778230091. The next prime is 778230137. The reversal of 778230131 is 131032877.

It is a cyclic number.

It is not a de Polignac number, because 778230131 - 2¹⁰ = 778229107 is a prime.

It is a super-2 number, since 2×778230131² = 1211284273592554322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (778230137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46346 + ... + 60863.

It is an arithmetic number, because the mean of its divisors is an integer number (59823180).

Almost surely, 2^778230131 is an apocalyptic number.

778230131 is a deficient number, since it is larger than the sum of its proper divisors (178940749).

778230131 is a wasteful number, since it uses less digits than its factorization.

778230131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107294.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 778230131 is about 27896.7763549841. The cubic root of 778230131 is about 919.8196444661.

The spelling of 778230131 in words is "seven hundred seventy-eight million, two hundred thirty thousand, one hundred thirty-one".