75846145 has 4 divisors (see below), whose sum is σ = 91015380. Its totient is φ = 60676912.

The previous prime is 75846139. The next prime is 75846151. The reversal of 75846145 is 54164857.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54164857 = 277 ⋅195541.

It is an interprime number because it is at equal distance from previous prime (75846139) and next prime (75846151).

It can be written as a sum of positive squares in 2 ways, for example, as 45684081 + 30162064 = 6759^2 + 5492^2 .

It is a cyclic number.

It is not a de Polignac number, because 75846145 - 2³ = 75846137 is a prime.

It is a super-2 number, since 2×75846145² = 11505275422722050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 75846098 and 75846107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7584610 + ... + 7584619.

It is an arithmetic number, because the mean of its divisors is an integer number (22753845).

Almost surely, 2^75846145 is an apocalyptic number.

It is an amenable number.

75846145 is a deficient number, since it is larger than the sum of its proper divisors (15169235).

75846145 is a wasteful number, since it uses less digits than its factorization.

75846145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15169234.

The product of its digits is 134400, while the sum is 40.

The square root of 75846145 is about 8708.9692271818. The cubic root of 75846145 is about 423.2963308362.

The spelling of 75846145 in words is "seventy-five million, eight hundred forty-six thousand, one hundred forty-five".