78368145 has 16 divisors (see below), whose sum is σ = 128306112. Its totient is φ = 40824000.

The previous prime is 78368131. The next prime is 78368159. The reversal of 78368145 is 54186387.

It is an interprime number because it is at equal distance from previous prime (78368131) and next prime (78368159).

It is not a de Polignac number, because 78368145 - 2¹¹ = 78366097 is a prime.

It is a super-2 number, since 2×78368145² = 12283132301482050, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 78368097 and 78368106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60106 + ... + 61395.

It is an arithmetic number, because the mean of its divisors is an integer number (8019132).

Almost surely, 2^78368145 is an apocalyptic number.

It is an amenable number.

78368145 is a deficient number, since it is larger than the sum of its proper divisors (49937967).

78368145 is a wasteful number, since it uses less digits than its factorization.

78368145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121552.

The product of its digits is 161280, while the sum is 42.

The square root of 78368145 is about 8852.5784379468. The cubic root of 78368145 is about 427.9370176196.

The spelling of 78368145 in words is "seventy-eight million, three hundred sixty-eight thousand, one hundred forty-five".