75143630 has 16 divisors (see below), whose sum is σ = 135574560. Its totient is φ = 29987232.

The previous prime is 75143623. The next prime is 75143657. The reversal of 75143630 is 3634157.

It is a junction number, because it is equal to n+sod(n) for n = 75143593 and 75143602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4169 + ... + 12948.

It is an arithmetic number, because the mean of its divisors is an integer number (8473410).

Almost surely, 2^75143630 is an apocalyptic number.

75143630 is a deficient number, since it is larger than the sum of its proper divisors (60430930).

75143630 is a wasteful number, since it uses less digits than its factorization.

75143630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17563.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 75143630 is about 8668.5425533939. The cubic root of 75143630 is about 421.9853659488.

Adding to 75143630 its reverse (3634157), we get a palindrome (78777787).

The spelling of 75143630 in words is "seventy-five million, one hundred forty-three thousand, six hundred thirty".