75667145 has 8 divisors (see below), whose sum is σ = 92289480. Its totient is φ = 59541120.

The previous prime is 75667129. The next prime is 75667147. The reversal of 75667145 is 54176657.

It can be written as a sum of positive squares in 4 ways, for example, as 1517824 + 74149321 = 1232^2 + 8611^2 .

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

It is not a de Polignac number, because 75667145 - 2⁴ = 75667129 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75667147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123740 + ... + 124349.

It is an arithmetic number, because the mean of its divisors is an integer number (11536185).

Almost surely, 2^75667145 is an apocalyptic number.

It is an amenable number.

75667145 is a deficient number, since it is larger than the sum of its proper divisors (16622335).

75667145 is a wasteful number, since it uses less digits than its factorization.

75667145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248155.

The product of its digits is 176400, while the sum is 41.

The square root of 75667145 is about 8698.6863950829. The cubic root of 75667145 is about 422.9630696521.

The spelling of 75667145 in words is "seventy-five million, six hundred sixty-seven thousand, one hundred forty-five".