75641465 has 8 divisors (see below), whose sum is σ = 91147848. Its totient is φ = 60261120.

The previous prime is 75641453. The next prime is 75641477. The reversal of 75641465 is 56414657.

It is an interprime number because it is at equal distance from previous prime (75641453) and next prime (75641477).

It can be written as a sum of positive squares in 4 ways, for example, as 29767936 + 45873529 = 5456^2 + 6773^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-75641465 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 30182 + ... + 32591.

It is an arithmetic number, because the mean of its divisors is an integer number (11393481).

Almost surely, 2^75641465 is an apocalyptic number.

It is an amenable number.

75641465 is a deficient number, since it is larger than the sum of its proper divisors (15506383).

75641465 is a wasteful number, since it uses less digits than its factorization.

75641465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63019.

The product of its digits is 100800, while the sum is 38.

The square root of 75641465 is about 8697.2101848811. The cubic root of 75641465 is about 422.9152156788.

The spelling of 75641465 in words is "seventy-five million, six hundred forty-one thousand, four hundred sixty-five".