75415165 has 12 divisors (see below), whose sum is σ = 105273756. Its totient is φ = 51713088.

The previous prime is 75415141. The next prime is 75415169. The reversal of 75415165 is 56151457.

It can be written as a sum of positive squares in 2 ways, for example, as 46963609 + 28451556 = 6853^2 + 5334^2 .

It is not a de Polignac number, because 75415165 - 2⁷ = 75415037 is a prime.

It is a super-2 number, since 2×75415165² = 11374894223954450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 75415165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75415169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153664 + ... + 154153.

It is an arithmetic number, because the mean of its divisors is an integer number (8772813).

Almost surely, 2^75415165 is an apocalyptic number.

It is an amenable number.

75415165 is a deficient number, since it is larger than the sum of its proper divisors (29858591).

75415165 is a wasteful number, since it uses less digits than its factorization.

75415165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307836 (or 307829 counting only the distinct ones).

The product of its digits is 21000, while the sum is 34.

The square root of 75415165 is about 8684.1905207106. The cubic root of 75415165 is about 422.4930428461.

The spelling of 75415165 in words is "seventy-five million, four hundred fifteen thousand, one hundred sixty-five".