74770143 has 16 divisors (see below), whose sum is σ = 114057216. Its totient is φ = 42680160.

The previous prime is 74770141. The next prime is 74770147. The reversal of 74770143 is 34107747.

It is not a de Polignac number, because 74770143 - 2¹ = 74770141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74770141) 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 15 ways as a sum of consecutive naturals, for example, 33853 + ... + 35993.

It is an arithmetic number, because the mean of its divisors is an integer number (7128576).

Almost surely, 2^74770143 is an apocalyptic number.

74770143 is a deficient number, since it is larger than the sum of its proper divisors (39287073).

74770143 is a wasteful number, since it uses less digits than its factorization.

74770143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3814.

The product of its (nonzero) digits is 16464, while the sum is 33.

The square root of 74770143 is about 8646.9730541965. The cubic root of 74770143 is about 421.2850719977.

The spelling of 74770143 in words is "seventy-four million, seven hundred seventy thousand, one hundred forty-three".