75847145 has 32 divisors (see below), whose sum is σ = 105356160. Its totient is φ = 51840000.

The previous prime is 75847139. The next prime is 75847147. The reversal of 75847145 is 54174857.

It is not a de Polignac number, because 75847145 - 2²⁶ = 8738281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75847147) 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 in 31 ways as a sum of consecutive naturals, for example, 188945 + ... + 189345.

It is an arithmetic number, because the mean of its divisors is an integer number (3292380).

Almost surely, 2^75847145 is an apocalyptic number.

It is an amenable number.

75847145 is a deficient number, since it is larger than the sum of its proper divisors (29509015).

75847145 is a wasteful number, since it uses less digits than its factorization.

75847145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617.

The product of its digits is 156800, while the sum is 41.

The square root of 75847145 is about 8709.0266390682. The cubic root of 75847145 is about 423.2981911570.

The spelling of 75847145 in words is "seventy-five million, eight hundred forty-seven thousand, one hundred forty-five".