74148143 has 4 divisors (see below), whose sum is σ = 74499768. Its totient is φ = 73796520.

The previous prime is 74148103. The next prime is 74148149. The reversal of 74148143 is 34184147.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74148143 - 2¹⁰ = 74147119 is a prime.

It is a super-2 number, since 2×74148143² = 10995894220696898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74148149) 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, 175496 + ... + 175917.

It is an arithmetic number, because the mean of its divisors is an integer number (18624942).

Almost surely, 2^74148143 is an apocalyptic number.

74148143 is a deficient number, since it is larger than the sum of its proper divisors (351625).

74148143 is a wasteful number, since it uses less digits than its factorization.

74148143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351624.

The product of its digits is 10752, while the sum is 32.

The square root of 74148143 is about 8610.9315988457. The cubic root of 74148143 is about 420.1136181653.

It can be divided in two parts, 741 and 48143, that added together give a palindrome (48884).

The spelling of 74148143 in words is "seventy-four million, one hundred forty-eight thousand, one hundred forty-three".