75465143 has 4 divisors (see below), whose sum is σ = 81270168. Its totient is φ = 69660120.

The previous prime is 75465107. The next prime is 75465151. The reversal of 75465143 is 34156457.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34156457 = 59 ⋅578923.

It is a cyclic number.

It is not a de Polignac number, because 75465143 - 2¹⁴ = 75448759 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 (75465443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2902493 + ... + 2902518.

It is an arithmetic number, because the mean of its divisors is an integer number (20317542).

Almost surely, 2^75465143 is an apocalyptic number.

75465143 is a deficient number, since it is larger than the sum of its proper divisors (5805025).

75465143 is a wasteful number, since it uses less digits than its factorization.

75465143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5805024.

The product of its digits is 50400, while the sum is 35.

The square root of 75465143 is about 8687.0675719716. The cubic root of 75465143 is about 422.5863516415.

The spelling of 75465143 in words is "seventy-five million, four hundred sixty-five thousand, one hundred forty-three".