74172141 has 6 divisors (see below), whose sum is σ = 107137550. Its totient is φ = 49448088.

The previous prime is 74172127. The next prime is 74172167. The reversal of 74172141 is 14127147.

It can be written as a sum of positive squares in only one way, i.e., 73874025 + 298116 = 8595^2 + 546^2 .

It is not a de Polignac number, because 74172141 - 2¹⁹ = 73647853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74172101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4120666 + ... + 4120683.

Almost surely, 2^74172141 is an apocalyptic number.

It is an amenable number.

74172141 is a deficient number, since it is larger than the sum of its proper divisors (32965409).

74172141 is a wasteful number, since it uses less digits than its factorization.

74172141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8241355 (or 8241352 counting only the distinct ones).

The product of its digits is 1568, while the sum is 27.

The square root of 74172141 is about 8612.3249474227. The cubic root of 74172141 is about 420.1589364463.

Adding to 74172141 its reverse (14127147), we get a palindrome (88299288).

The spelling of 74172141 in words is "seventy-four million, one hundred seventy-two thousand, one hundred forty-one".