74937143 has 4 divisors (see below), whose sum is σ = 75273408. Its totient is φ = 74600880.

The previous prime is 74937133. The next prime is 74937157. The reversal of 74937143 is 34173947.

It is a happy number.

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 74937143 - 2⁴ = 74937127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74937097 and 74937106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74937103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167798 + ... + 168243.

It is an arithmetic number, because the mean of its divisors is an integer number (18818352).

Almost surely, 2^74937143 is an apocalyptic number.

74937143 is a deficient number, since it is larger than the sum of its proper divisors (336265).

74937143 is a wasteful number, since it uses less digits than its factorization.

74937143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336264.

The product of its digits is 63504, while the sum is 38.

The square root of 74937143 is about 8656.6242265678. The cubic root of 74937143 is about 421.5984871739.

The spelling of 74937143 in words is "seventy-four million, nine hundred thirty-seven thousand, one hundred forty-three".