747143 has 4 divisors (see below), whose sum is σ = 765408. Its totient is φ = 728880.

The previous prime is 747139. The next prime is 747157. The reversal of 747143 is 341747.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341747 = 7 ⋅48821.

It is a cyclic number.

It is not a de Polignac number, because 747143 - 2² = 747139 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9071 + ... + 9152.

It is an arithmetic number, because the mean of its divisors is an integer number (191352).

2⁷⁴⁷¹⁴³ is an apocalyptic number.

747143 is a deficient number, since it is larger than the sum of its proper divisors (18265).

747143 is a wasteful number, since it uses less digits than its factorization.

747143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18264.

The product of its digits is 2352, while the sum is 26.

The square root of 747143 is about 864.3743402022. The cubic root of 747143 is about 90.7405158730.

The spelling of 747143 in words is "seven hundred forty-seven thousand, one hundred forty-three", and thus it is an iban number.