78056141 has 2 divisors, whose sum is σ = 78056142. Its totient is φ = 78056140.

The previous prime is 78056131. The next prime is 78056159. The reversal of 78056141 is 14165087.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56942116 + 21114025 = 7546^2 + 4595^2 .

It is an emirp because it is prime and its reverse (14165087) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78056141 - 2¹⁴ = 78039757 is a prime.

It is a super-2 number, since 2×78056141² = 12185522295623762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78056098 and 78056107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78056101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39028070 + 39028071.

It is an arithmetic number, because the mean of its divisors is an integer number (39028071).

Almost surely, 2^78056141 is an apocalyptic number.

It is an amenable number.

78056141 is a deficient number, since it is larger than the sum of its proper divisors (1).

78056141 is an equidigital number, since it uses as much as digits as its factorization.

78056141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 78056141 is about 8834.9386528713. The cubic root of 78056141 is about 427.3683527016.

The spelling of 78056141 in words is "seventy-eight million, fifty-six thousand, one hundred forty-one".