75012017 has 4 divisors (see below), whose sum is σ = 75156516. Its totient is φ = 74867520.

The previous prime is 75011983. The next prime is 75012079. The reversal of 75012017 is 71021057.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71021057 = 7529 ⋅9433.

It can be written as a sum of positive squares in 2 ways, for example, as 48427681 + 26584336 = 6959^2 + 5156^2 .

It is a cyclic number.

It is not a de Polignac number, because 75012017 - 2¹² = 75007921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75011983 and 75012001.

It is not an unprimeable number, because it can be changed into a prime (75012617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71468 + ... + 72509.

It is an arithmetic number, because the mean of its divisors is an integer number (18789129).

Almost surely, 2^75012017 is an apocalyptic number.

It is an amenable number.

75012017 is a deficient number, since it is larger than the sum of its proper divisors (144499).

75012017 is a wasteful number, since it uses less digits than its factorization.

75012017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144498.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 75012017 is about 8660.9478118737. The cubic root of 75012017 is about 421.7388548488.

The spelling of 75012017 in words is "seventy-five million, twelve thousand, seventeen".