75143732 has 6 divisors (see below), whose sum is σ = 131501538. Its totient is φ = 37571864.

The previous prime is 75143713. The next prime is 75143743. The reversal of 75143732 is 23734157.

It can be written as a sum of positive squares in only one way, i.e., 38613796 + 36529936 = 6214^2 + 6044^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9392963 + ... + 9392970.

It is an arithmetic number, because the mean of its divisors is an integer number (21916923).

Almost surely, 2^75143732 is an apocalyptic number.

It is an amenable number.

75143732 is a deficient number, since it is larger than the sum of its proper divisors (56357806).

75143732 is a wasteful number, since it uses less digits than its factorization.

75143732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18785937 (or 18785935 counting only the distinct ones).

The product of its digits is 17640, while the sum is 32.

The square root of 75143732 is about 8668.5484367338. The cubic root of 75143732 is about 421.9855568831.

Adding to 75143732 its reverse (23734157), we get a palindrome (98877889).

The spelling of 75143732 in words is "seventy-five million, one hundred forty-three thousand, seven hundred thirty-two".