75475143 has 12 divisors (see below), whose sum is σ = 109095168. Its totient is φ = 50281920.

The previous prime is 75475123. The next prime is 75475151. The reversal of 75475143 is 34157457.

It is a happy number.

It is not a de Polignac number, because 75475143 - 2¹⁴ = 75458759 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 75475098 and 75475107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75475123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22623 + ... + 25743.

It is an arithmetic number, because the mean of its divisors is an integer number (9091264).

Almost surely, 2^75475143 is an apocalyptic number.

75475143 is a deficient number, since it is larger than the sum of its proper divisors (33620025).

75475143 is a wasteful number, since it uses less digits than its factorization.

75475143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5814 (or 5811 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 75475143 is about 8687.6431211232. The cubic root of 75475143 is about 422.6050166688.

The spelling of 75475143 in words is "seventy-five million, four hundred seventy-five thousand, one hundred forty-three".