73545143 has 8 divisors (see below), whose sum is σ = 88475520. Its totient is φ = 59720760.

The previous prime is 73545127. The next prime is 73545151. The reversal of 73545143 is 34154537.

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

It is a cyclic number.

It is not a de Polignac number, because 73545143 - 2⁴ = 73545127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73545643) 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, 276353 + ... + 276618.

It is an arithmetic number, because the mean of its divisors is an integer number (11059440).

Almost surely, 2^73545143 is an apocalyptic number.

73545143 is a deficient number, since it is larger than the sum of its proper divisors (14930377).

73545143 is a wasteful number, since it uses less digits than its factorization.

73545143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552997.

The product of its digits is 25200, while the sum is 32.

The square root of 73545143 is about 8575.8464888313. The cubic root of 73545143 is about 418.9716774449.

The spelling of 73545143 in words is "seventy-three million, five hundred forty-five thousand, one hundred forty-three".