74144147 has 8 divisors (see below), whose sum is σ = 92439552. Its totient is φ = 57774600.

The previous prime is 74144131. The next prime is 74144173.

74144147 is nontrivially palindromic in base 10.

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 74144147 - 2⁴ = 74144131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74144177) 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, 481379 + ... + 481532.

It is an arithmetic number, because the mean of its divisors is an integer number (11554944).

Almost surely, 2^74144147 is an apocalyptic number.

74144147 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

74144147 is a deficient number, since it is larger than the sum of its proper divisors (18295405).

74144147 is a wasteful number, since it uses less digits than its factorization.

74144147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962929.

The product of its digits is 12544, while the sum is 32.

The square root of 74144147 is about 8610.6995650760. The cubic root of 74144147 is about 420.1060710931.

The spelling of 74144147 in words is "seventy-four million, one hundred forty-four thousand, one hundred forty-seven".