75241636 has 6 divisors (see below), whose sum is σ = 131672870. Its totient is φ = 37620816.

The previous prime is 75241627. The next prime is 75241637. The reversal of 75241636 is 63614257.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 60372900 + 14868736 = 7770^2 + 3856^2 .

It is a super-2 number, since 2×75241636² = 11322607575912992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75241637) 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 as a sum of consecutive naturals, namely, 9405201 + ... + 9405208.

Almost surely, 2^75241636 is an apocalyptic number.

It is an amenable number.

75241636 is a deficient number, since it is larger than the sum of its proper divisors (56431234).

75241636 is a wasteful number, since it uses less digits than its factorization.

75241636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18810413 (or 18810411 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 75241636 is about 8674.1936801065. The cubic root of 75241636 is about 422.1687442374.

The spelling of 75241636 in words is "seventy-five million, two hundred forty-one thousand, six hundred thirty-six".