75217132 has 6 divisors (see below), whose sum is σ = 131629988. Its totient is φ = 37608564.

The previous prime is 75217127. The next prime is 75217133. The reversal of 75217132 is 23171257.

It is a self number, because there is not a number n which added to its sum of digits gives 75217132.

It is not an unprimeable number, because it can be changed into a prime (75217133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9402138 + ... + 9402145.

Almost surely, 2^75217132 is an apocalyptic number.

It is an amenable number.

75217132 is a deficient number, since it is larger than the sum of its proper divisors (56412856).

75217132 is a wasteful number, since it uses less digits than its factorization.

75217132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18804287 (or 18804285 counting only the distinct ones).

The product of its digits is 2940, while the sum is 28.

The square root of 75217132 is about 8672.7810995090. The cubic root of 75217132 is about 422.1229099243.

Adding to 75217132 its reverse (23171257), we get a palindrome (98388389).

The spelling of 75217132 in words is "seventy-five million, two hundred seventeen thousand, one hundred thirty-two".