75765145 has 8 divisors (see below), whose sum is σ = 92459520. Its totient is φ = 59584560.

The previous prime is 75765127. The next prime is 75765149. The reversal of 75765145 is 54156757.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75765145 - 2⁷ = 75765017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75765098 and 75765107.

It is not an unprimeable number, because it can be changed into a prime (75765149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128121 + ... + 128710.

It is an arithmetic number, because the mean of its divisors is an integer number (11557440).

Almost surely, 2^75765145 is an apocalyptic number.

It is an amenable number.

75765145 is a deficient number, since it is larger than the sum of its proper divisors (16694375).

75765145 is a wasteful number, since it uses less digits than its factorization.

75765145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256895.

The product of its digits is 147000, while the sum is 40.

The square root of 75765145 is about 8704.3176067972. The cubic root of 75765145 is about 423.1455905199.

It can be divided in two parts, 7576 and 5145, that added together give a palindrome (12721).

The spelling of 75765145 in words is "seventy-five million, seven hundred sixty-five thousand, one hundred forty-five".