75143077 has 8 divisors (see below), whose sum is σ = 79897752. Its totient is φ = 70425600.

The previous prime is 75143051. The next prime is 75143099. The reversal of 75143077 is 77034157.

It can be written as a sum of positive squares in 4 ways, for example, as 13771521 + 61371556 = 3711^2 + 7834^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75143077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75143777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5074 + ... + 13267.

It is an arithmetic number, because the mean of its divisors is an integer number (9987219).

Almost surely, 2^75143077 is an apocalyptic number.

It is an amenable number.

75143077 is a deficient number, since it is larger than the sum of its proper divisors (4754675).

75143077 is a wasteful number, since it uses less digits than its factorization.

75143077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18599.

The product of its (nonzero) digits is 20580, while the sum is 34.

The square root of 75143077 is about 8668.5106563931. The cubic root of 75143077 is about 421.9843307824.

The spelling of 75143077 in words is "seventy-five million, one hundred forty-three thousand, seventy-seven".