78124331 has 8 divisors (see below), whose sum is σ = 79231824. Its totient is φ = 77020960.

The previous prime is 78124327. The next prime is 78124337. The reversal of 78124331 is 13342187.

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 78124331 - 2² = 78124327 is a prime.

It is a super-2 number, since 2×78124331² = 12206822188395122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78124294 and 78124303.

It is not an unprimeable number, because it can be changed into a prime (78124337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65561 + ... + 66741.

It is an arithmetic number, because the mean of its divisors is an integer number (9903978).

Almost surely, 2^78124331 is an apocalyptic number.

78124331 is a deficient number, since it is larger than the sum of its proper divisors (1107493).

78124331 is a wasteful number, since it uses less digits than its factorization.

78124331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061.

The product of its digits is 4032, while the sum is 29.

The square root of 78124331 is about 8838.7969203959. The cubic root of 78124331 is about 427.4927664269.

The spelling of 78124331 in words is "seventy-eight million, one hundred twenty-four thousand, three hundred thirty-one".